Hello TJ,
I hope you can sort out the problem.
On a related note, if point 3(b) - that your UPS can't handle the power
spike when pumps/compressors power on - is the root cause of your
problem, then when the UPS fails, it may automatically switch to
"bypass" mode - which I mentioned in point 3 (c).
Regarding the automatic switch to city water: that was a feature in the
particular model of HASKRIS chiller we ordered. I had asked about
backup city water. They said that if we could but the necessary plumbing
in pace, they could sell us a chiller that could automatically switch
between chilled water and city water.
NOTE: once the system switches to city water, one has to manually
switch back to chilled water. I think that is a safety feature, which
makes sense.
For your reference, our HASKRIS chiller model is: INDOOR WW2-230V-10-60Hz
Good luck,
Bob.
On 2024-07-15 11:33 a.m., Thusitha Jayasundera via groups.io wrote:
>
>
> Thanks Bob--I know that we definitely do not have a city water backup.
> I wasn't even aware that this was a possibility, and should check on
> this immediately. Thus far, the issue has always occurred during a
> power switch, and I think the point you make in 3 (b) is likely where
> we went wrong--so I should look into that as well.
>
> Much appreciation to both of you for your suggestions!
>
> Best,
>
> TJ.
>
>
--
Dr. Bob Berno
Manager, NMR Facility
McMaster University, ABB-156
1280 Main St. West
Hamilton, ON L8S 4M1
T: 905-525-9140 x24158 or x24686
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Subject: [AMMRL] UPS for the Haskris unit? #UPS #Hardware #Haskris
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Dear All,
We also use Haskris units for our cold probes (3 units, 2 are R300 and 1 WW2)
and also for DNP solids (3 haskris units on this system, one of them WW2.
Some of the Haskris coolers models have an optional domestic water bypass,
but can have a severe weakness that has recently caused a laboratory flood.
During power and/or chilled water failures, solenoids are supposed to open/close
automatically to switch from building chilled water in the circulating bath,
to domestic water and flush this water through the device to be cooled
(e.g. our compressor). While extremely wasteful, it is meant to save
essential equipment from over heat and failing.
We have now had 2 incidents where a solenoid failed. The first case last year
the circulation bath was incorrectly send down the domestic drain emptying the
system and causing a compressor overheat and failure. This solenoid was
replaced (more below).
In the second event just recently, a different solenoid failed and instead
sent some of the domestic water into the bath instead of the compressor,
overflowing the bath and flooding the lab. We were extremely fortunate to be
present when this happened and we didn=E2=80=99t flood the floors below.
However we did overheat the compressor, and had major clean up. We are
currently looking at another solenoid replacement and have been on a manual
by-pass of the Haskris as the domestic by-pass failed.
Haskirs has acknowledged that the solenoids may =E2=80=9Cnot perform to expectations=E2=80=9D
and a maintenance kit is sold=E2=80=A6..however we can=E2=80=99t tell before a
solenoid fails=E2=80=A6..so the kit is only useful after, and we are seeming to get
failures far too regularly. We only switch to domestic water upon emergencies
so our success/failure ratio is pretty bad.
I=E2=80=99ve been informed that newer Haskris bypass units are now using a
mechanical value. We are looking into a retrofit to replace the electronically
controlled solenoids with the newer valves.
Be aware, and if you=E2=80=99re including a domestic water bypass and/or looking
to put one in on an existing unit, make sure to get the newer valves and plan
in contingencies. We are currently looking for how to pipe a drain in by the
Haskris to prevent future failures from flooding the building.
Best wishes,
Ryan
----------------------------------------------------------
Ryan McKay, PhD
NMR Facility Manager
(he/him)
University of Alberta
College of Natural and Applied Sciences - Faculty of Science
Department of Chemistry
Shipping Address
University of Alberta
Chemistry Department
Room E3-17A East Chem. Bld.
Co: Ryan McKay
116 Street and 85th Avenue
Edmonton, Alberta, Canada
T6G 2R3
Office 780.492.9950
Mobile 780.920.8871
URL uab.ca/nmr
Email ryan.mckay_at_ualberta.ca
The University of Alberta respectfully acknowledges that we are situated on
Treaty 6 territory, traditional lands of First Nations and M=C3=A9tis people.
>
> From: "Bob Berno" <bberno_at_mcmaster.ca>
> Subject: Re: [AMMRL] UPS for the Haskris unit? #UPS #Hardware #Haskris
> Date: July 15, 2024 at 10:13:18=E2=80=AFAM MDT
> To: main_at_ammrl.groups.io
> Resent-From: bberno_at_mcmaster.ca
> Reply-To: main_at_ammrl.groups.io
>
> Hello TJ,
>
> I hope you can sort out the problem.
> On a related note, if point 3(b) - that your UPS can't handle the power spike
> when pumps/compressors power on - is the root cause of your problem, then
> when the UPS fails, it may automatically switch to "bypass" mode - which
> I mentioned in point 3 (c).
>
> Regarding the automatic switch to city water: that was a feature in the
> particular model of HASKRIS chiller we ordered. I had asked about backup
> city water. They said that if we could but the necessary plumbing in pace,
> they could sell us a chiller that could automatically switch between chilled
> water and city water.
> NOTE: once the system switches to city water, one has to manually switch
> back to chilled water. I think that is a safety feature, which makes sense.
>
> For your reference, our HASKRIS chiller model is: INDOOR WW2-230V-10-60Hz
>
> Good luck,
> Bob.
>
> On 2024-07-15 11:33 a.m., Thusitha Jayasundera via groups.io wrote:
>>
>>
>> Thanks Bob--I know that we definitely do not have a city water backup. I
>> wasn't even aware that this was a possibility, and should check on this
>> immediately. Thus far, the issue has always occurred during a power switch,
>> and I think the point you make in 3 (b) is likely where we went wrong--so I
>> should look into that as well.
>>
>> Much appreciation to both of you for your suggestions!
>>
>> Best,
>>
>>
>> TJ.
>>
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Mute #haskris:
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Group Owner: main+owner_at_ammrl.groups.io
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=
=3Dutf-8"/></head><body style=3D"overflow-wrap: break-word; -webkit-nbsp-=
mode: space; line-break: after-white-space; ; ;">Dear All,<div><br/></di=
v><div>We also use Haskris units for our cold probes (3 units, 2 are R300 a=
nd 1 WW2) and also for DNP solids (3 haskris units on this system, one of t=
hem WW2).</div><div><br/></div><div>Some of the Haskris coolers models have=
an optional domestic water bypass, but can have a severe weakness that has=
recently caused a laboratory flood.</div><div><br/></div><div>During power=
and/or chilled water failures, solenoids are supposed to open/close automa=
tically to switch from building chilled water in the circulating bath, to d=
omestic water and flush this water through the device to be cooled (e.g. ou=
r compressor). =C2=A0While extremely wasteful, it is meant to save essentia=
l equipment from over heat and failing.</div><div><br/></div><div>We have n=
ow had 2 incidents where a solenoid failed. =C2=A0The first case last year =
the circulation bath was incorrectly send down the domestic drain emptying =
the system and causing a compressor overheat and failure. =C2=A0This soleno=
id was replaced (more below).</div><div><br/></div><div>In the second event=
just recently, a different solenoid failed and instead sent some of the do=
mestic water into the bath instead of the compressor, overflowing the bath =
and flooding the lab. =C2=A0We were extremely fortunate to be present when =
this happened and we didn=E2=80=99t flood the floors below. =C2=A0However w=
e did overheat the compressor, and had major clean up. =C2=A0We are current=
ly looking at another solenoid replacement and have been on a manual by-pas=
s of the Haskris as the domestic by-pass failed.</div><div><br/></div><div>=
Haskirs has acknowledged that the solenoids may =E2=80=9Cnot perform to exp=
ectations=E2=80=9D and a maintenance kit is sold=E2=80=A6..however we can=
=E2=80=99t tell before a solenoid fails=E2=80=A6..so the kit is only useful=
after, and we are seeming to get failures far too regularly. =C2=A0 We onl=
y switch to domestic water upon emergencies so our success/failure ratio is=
pretty bad.</div><div><br/></div><div>I=E2=80=99ve been informed that newe=
r Haskris bypass units are now using a mechanical value. =C2=A0We are looki=
ng into a retrofit to replace the electronically controlled solenoids with =
the newer valves.</div><div><br/></div><div><br/></div><div>Be aware, and i=
f you=E2=80=99re including a domestic water bypass and/or looking to put on=
e in on an existing unit, make sure to get the newer valves and plan in con=
tingencies. =C2=A0We are currently looking for how to pipe a drain in by th=
e Haskris to prevent future failures from flooding the building. =C2=A0</di=
v><div><br/></div><div>Best wishes,</div><div>Ryan</div><div><br/></div><di=
v><div><div style=3D" font-variant-caps: normal; letter-spacing: normal; =
text-align: -webkit-auto; text-indent: 0px; text-transform: none; w=
hite-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none; caret-color: rgb(0, 0, 0); font-variant-ligatu=
res: normal; font-variant-east-asian: normal; font-variant-position: no=
rmal; line-height: normal; orphans: 2; widows: 2; overflow-wrap: br=
eak-word; -webkit-nbsp-mode: space; line-break: after-white-space; ; ;=
"><div style=3D"orphans: 2; text-align: -webkit-auto; text-indent: 0px;=
widows: 2; font-variant-ligatures: normal; font-variant-east-asian: =
normal; font-variant-position: normal; line-height: normal; overflow-=
wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-spa=
ce; ; ;"><div style=3D"font-variant-ligatures: normal; font-variant-east=
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rphans: 2; text-align: -webkit-auto; text-indent: 0px; widows: 2; o=
verflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-w=
hite-space; ; ;"><div style=3D"font-variant-ligatures: normal; font-vari=
ant-east-asian: normal; font-variant-position: normal; line-height: nor=
mal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows=
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orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows: 2; =
-webkit-text-decorations-in-effect: none; ; ;"><span style=3D"-webkit-tex=
t-decorations-in-effect: none; ; ;"><defangedfont face=3D"HelveticaNeue"><=
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font-variant-caps: normal; letter-spacing: normal; text-transform: none=
; white-space: normal; word-spacing: 0px; text-decoration: none; -w=
ebkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-vari=
ant-east-asian: normal; font-variant-position: normal; line-height: nor=
mal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows=
: 2; -webkit-text-decorations-in-effect: none; ; ;"><span style=3D"-webk=
it-text-decorations-in-effect: none; ; ;"><defangedfont face=3D"HelveticaN=
eue">----------------------------------------------------------</defangedfo=
nt></span></div><div style=3D"caret-color: rgb(0, 0, 0); font-variant-cap=
s: normal; letter-spacing: normal; text-transform: none; white-space:=
normal; word-spacing: 0px; text-decoration: none; -webkit-text-strok=
e-width: 0px; font-variant-ligatures: normal; font-variant-east-asian: =
normal; font-variant-position: normal; line-height: normal; orphans: =
2; text-align: -webkit-auto; text-indent: 0px; widows: 2; -webkit-t=
ext-decorations-in-effect: none; ; ;"><span style=3D"-webkit-text-decorati=
ons-in-effect: none; ; ;"><defangedfont face=3D"HelveticaNeue"><b>Ryan McK=
ay</b>, PhD</defangedfont></span></div><div style=3D"caret-color: rgb(0, 0,=
0); font-variant-caps: normal; letter-spacing: normal; text-transfor=
m: none; white-space: normal; word-spacing: 0px; text-decoration: non=
e; -webkit-text-stroke-width: 0px; font-variant-ligatures: normal; fo=
nt-variant-east-asian: normal; font-variant-position: normal; line-heig=
ht: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; =
widows: 2; -webkit-text-decorations-in-effect: none; ; ;"><span style=
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elveticaNeue">NMR Facility Manager</defangedfont></span></div><div style=3D=
"caret-color: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: =
normal; text-transform: none; white-space: normal; word-spacing: 0px;=
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on: normal; line-height: normal; orphans: 2; text-align: -webkit-auto=
; text-indent: 0px; widows: 2; ; ;"><defangedfont color=3D"#5c5c5c" fa=
ce=3D"HelveticaNeue"><span style=3D""><i><span style=3D"caret-color: rgb(0,=
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form: none; white-space: normal; word-spacing: 0px; text-decoration: =
none; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-wid=
th: 0px; ; ;"><defangedfont>(h</defangedfont></span>e/him)</i></span></def=
angedfont></div><div style=3D"caret-color: rgb(0, 0, 0); font-variant-cap=
s: normal; letter-spacing: normal; text-transform: none; white-space:=
normal; word-spacing: 0px; text-decoration: none; -webkit-text-strok=
e-width: 0px; font-variant-ligatures: normal; font-variant-east-asian: =
normal; font-variant-position: normal; line-height: normal; orphans: =
2; text-align: -webkit-auto; text-indent: 0px; widows: 2; -webkit-t=
ext-decorations-in-effect: none; ; ;"><span style=3D"-webkit-text-decorati=
ons-in-effect: none; ; ;"><defangedfont face=3D"HelveticaNeue"><br/></defa=
ngedfont></span></div><div style=3D"caret-color: rgb(0, 0, 0); font-varia=
nt-caps: normal; letter-spacing: normal; text-transform: none; white-=
space: normal; word-spacing: 0px; text-decoration: none; -webkit-text=
-stroke-width: 0px; font-variant-ligatures: normal; font-variant-east-a=
sian: normal; font-variant-position: normal; line-height: normal; orp=
hans: 2; text-align: -webkit-auto; text-indent: 0px; widows: 2; -we=
bkit-text-decorations-in-effect: none; ; ;"><span style=3D"-webkit-text-de=
corations-in-effect: none; ; ;"><b><defangedfont face=3D"HelveticaNeue">Un=
iversity of Alberta</defangedfont></b></span></div><div style=3D"caret-colo=
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dent: 0px; widows: 2; -webkit-text-decorations-in-effect: none; ; ;"><=
span style=3D"-webkit-text-decorations-in-effect: none; ; ;"><defangedfont=
color=3D"#275d39" face=3D"HelveticaNeue">College of Natural and Applied Sc=
iences - Faculty of Science</defangedfont></span></div><div style=3D"caret-=
color: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal;=
text-transform: none; white-space: normal; word-spacing: 0px; text=
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es: normal; font-variant-east-asian: normal; font-variant-position: nor=
mal; line-height: normal; orphans: 2; text-align: -webkit-auto; tex=
t-indent: 0px; widows: 2; -webkit-text-decorations-in-effect: none; ; =
;"><span style=3D"-webkit-text-decorations-in-effect: none; ; ;"><defanged=
font color=3D"#275d39" face=3D"HelveticaNeue">Department of Chemistry</defa=
ngedfont></span></div><div style=3D"caret-color: rgb(0, 0, 0); font-varia=
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sian: normal; font-variant-position: normal; line-height: normal; orp=
hans: 2; text-align: -webkit-auto; text-indent: 0px; widows: 2; -we=
bkit-text-decorations-in-effect: none; ; ;"><span style=3D"-webkit-text-de=
corations-in-effect: none; ; ;"><defangedfont face=3D"HelveticaNeue"><br/>=
</defangedfont></span></div><div style=3D"caret-color: rgb(0, 0, 0); font=
-variant-caps: normal; letter-spacing: normal; text-transform: none; =
white-space: normal; word-spacing: 0px; text-decoration: none; -webki=
t-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-=
east-asian: normal; font-variant-position: normal; line-height: normal;=
orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows: 2;=
-webkit-text-decorations-in-effect: none; ; ;"><span style=3D"-webkit-t=
ext-decorations-in-effect: none; ; ;"><defangedfont face=3D"HelveticaNeue"=
><b>Shipping Address</b></defangedfont></span></div><div style=3D"caret-col=
or: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; =
text-transform: none; white-space: normal; word-spacing: 0px; text-de=
coration: none; -webkit-text-stroke-width: 0px; font-variant-ligatures:=
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; line-height: normal; orphans: 2; text-align: -webkit-auto; text-i=
ndent: 0px; widows: 2; -webkit-text-decorations-in-effect: none; ; ;">=
<div style=3D"text-align: -webkit-auto; font-variant-ligatures: normal; =
font-variant-east-asian: normal; font-variant-position: normal; line-h=
eight: normal; -webkit-text-decorations-in-effect: none; ; ;"><span styl=
e=3D"-webkit-text-decorations-in-effect: none; ; ;"><defangedfont color=3D=
"#275d39" face=3D"HelveticaNeue">University of Alberta</defangedfont></span=
></div><div><span style=3D"-webkit-text-decorations-in-effect: none; ; ;">=
<defangedfont color=3D"#275d39" face=3D"HelveticaNeue">Chemistry Department=
</defangedfont></span></div></div><div style=3D"caret-color: rgb(0, 0, 0); =
font-variant-caps: normal; letter-spacing: normal; text-transform: no=
ne; white-space: normal; word-spacing: 0px; text-decoration: none; =
-webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-va=
riant-east-asian: normal; font-variant-position: normal; line-height: n=
ormal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; wido=
ws: 2; -webkit-text-decorations-in-effect: none; ; ;"><div style=3D"text=
-align: -webkit-auto; font-variant-ligatures: normal; font-variant-east=
-asian: normal; font-variant-position: normal; line-height: normal; -=
webkit-text-decorations-in-effect: none; ; ;"><span style=3D"text-align: -=
webkit-auto; -webkit-text-decorations-in-effect: none; ; ;"><defangedfon=
t color=3D"#275d39" face=3D"HelveticaNeue">Room E3-17A=C2=A0</defangedfont>=
</span><span style=3D"text-align: -webkit-auto; -webkit-text-decorations-=
in-effect: none; ; ;">East Chem. Bld.</span></div><div><span style=3D"text=
-align: -webkit-auto; -webkit-text-decorations-in-effect: none; ; ;">Co:=
Ryan McKay</span></div></div><div style=3D"caret-color: rgb(0, 0, 0); fo=
nt-variant-caps: normal; letter-spacing: normal; text-transform: none; =
white-space: normal; word-spacing: 0px; text-decoration: none; -web=
kit-text-stroke-width: 0px; font-variant-ligatures: normal; font-varian=
t-east-asian: normal; font-variant-position: normal; line-height: norma=
l; orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows: =
2; -webkit-text-decorations-in-effect: none; ; ;"><span style=3D" text-a=
lign: -webkit-auto; -webkit-text-decorations-in-effect: none; ; ;">116 S=
treet and 85th Avenue</span></div><div style=3D"caret-color: rgb(0, 0, 0); =
font-variant-caps: normal; letter-spacing: normal; text-transform: no=
ne; white-space: normal; word-spacing: 0px; text-decoration: none; =
-webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-va=
riant-east-asian: normal; font-variant-position: normal; line-height: n=
ormal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; wido=
ws: 2; -webkit-text-decorations-in-effect: none; ; ;"><span style=3D"-we=
bkit-text-decorations-in-effect: none; ; ;"><defangedfont color=3D"#275d39=
" face=3D"HelveticaNeue">Edmonton, Alberta, Canada</defangedfont></span></d=
iv><div style=3D"caret-color: rgb(0, 0, 0); font-variant-caps: normal; =
letter-spacing: normal; text-transform: none; white-space: normal; wo=
rd-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px;=
font-variant-ligatures: normal; font-variant-east-asian: normal; fon=
t-variant-position: normal; line-height: normal; orphans: 2; text-ali=
gn: -webkit-auto; text-indent: 0px; widows: 2; -webkit-text-decoratio=
ns-in-effect: none; ; ;"><span style=3D"-webkit-text-decorations-in-effect=
: none; ; ;"><defangedfont color=3D"#275d39" face=3D"HelveticaNeue">T6G 2R=
3</defangedfont></span></div><div style=3D"caret-color: rgb(0, 0, 0); fon=
t-variant-caps: normal; letter-spacing: normal; text-transform: none; =
white-space: normal; word-spacing: 0px; text-decoration: none; -webk=
it-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant=
-east-asian: normal; font-variant-position: normal; line-height: normal=
; orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows: 2=
; -webkit-text-decorations-in-effect: none; ; ;"><span style=3D"-webkit-=
text-decorations-in-effect: none; ; ;"><b><defangedfont face=3D"HelveticaN=
eue"><br/></defangedfont></b></span></div><div style=3D"caret-color: rgb(0,=
0, 0); font-variant-caps: normal; letter-spacing: normal; text-trans=
form: none; white-space: normal; word-spacing: 0px; text-decoration: =
none; -webkit-text-stroke-width: 0px; font-variant-ligatures: normal; =
font-variant-east-asian: normal; font-variant-position: normal; line-h=
eight: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px=
; widows: 2; -webkit-text-decorations-in-effect: none; ; ;"><span styl=
e=3D"-webkit-text-decorations-in-effect: none; ; ;"><defangedfont face=3D"=
HelveticaNeue"><b>Office</b><span class=3D"Apple-tab-span" style=3D" white-=
space: pre; ; ;"> </span>780.492.9950</defangedfont></span></div><div styl=
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ng: normal; text-transform: none; white-space: normal; word-spacing: =
0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-vari=
ant-ligatures: normal; font-variant-east-asian: normal; font-variant-po=
sition: normal; line-height: normal; orphans: 2; text-align: -webkit-=
auto; text-indent: 0px; widows: 2; -webkit-text-decorations-in-effect=
: none; ; ;"><span style=3D"-webkit-text-decorations-in-effect: none; ; ;=
"><defangedfont face=3D"HelveticaNeue"><b>Mobile</b><span class=3D"Apple-ta=
b-span" style=3D" white-space: pre; ; ;"> </span>780.920.8871</defangedfon=
t></span></div><div style=3D"caret-color: rgb(0, 0, 0); font-variant-caps=
: normal; letter-spacing: normal; text-transform: none; white-space: =
normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke=
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ormal; font-variant-position: normal; line-height: normal; orphans: 2=
; text-align: -webkit-auto; text-indent: 0px; widows: 2; -webkit-te=
xt-decorations-in-effect: none; ; ;"><span style=3D""><defangedfont face=
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ng: normal; text-transform: none; white-space: normal; word-spacing: =
0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-vari=
ant-ligatures: normal; font-variant-east-asian: normal; font-variant-po=
sition: normal; line-height: normal; orphans: 2; text-align: -webkit-=
auto; text-indent: 0px; widows: 2; ; ;"><defangedfont face=3D"Helvetic=
aNeue"><b>Email</b><span class=3D"Apple-converted-space" style=3D"">=C2=A0<=
/span>=C2=A0 =C2=A0=C2=A0ryan<defangedfont style=3D"">.mckay_at_ualberta.ca</d=
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font-variant-caps: normal; letter-spacing: normal; text-transform: non=
e; white-space: normal; word-spacing: 0px; text-decoration: none; -=
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rgb(0, 0, 0); ; ;"></span><span style=3D" font-variant-caps: normal; le=
tter-spacing: normal; text-align: start; text-indent: 0px; text-trans=
form: none; white-space: normal; word-spacing: 0px; -webkit-text-stro=
ke-width: 0px; text-decoration: none; caret-color: rgb(0, 0, 0); ; ;">=
</span><span style=3D" font-variant-caps: normal; letter-spacing: normal;=
text-align: start; text-indent: 0px; text-transform: none; white-s=
pace: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text=
-decoration: none; caret-color: rgb(0, 0, 0); ; ;"></span><span style=3D=
" font-variant-caps: normal; letter-spacing: normal; text-align: start;=
text-indent: 0px; text-transform: none; white-space: normal; word-=
spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; =
caret-color: rgb(0, 0, 0); ; ;"></span><span style=3D" font-variant-caps: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; -webk=
it-text-stroke-width: 0px; text-decoration: none; caret-color: rgb(0, 0=
, 0); ; ;"></span><span style=3D"caret-color: rgb(0, 0, 0); font-variant=
-caps: normal; letter-spacing: normal; text-align: start; text-indent=
: 0px; text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; ; ;"></span><sp=
an></span></defangedfont><span style=3D" font-variant-caps: normal; lette=
r-spacing: normal; orphans: auto; text-align: start; text-indent: 0px=
; text-transform: none; white-space: normal; widows: auto; word-spa=
cing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; car=
et-color: rgb(0, 0, 0); ; ;"></span><span style=3D" font-variant-caps: nor=
mal; letter-spacing: normal; orphans: auto; text-align: start; text=
-indent: 0px; text-transform: none; white-space: normal; widows: auto=
; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration:=
none; caret-color: rgb(0, 0, 0); ; ;"></span><span style=3D" font-varia=
nt-caps: normal; letter-spacing: normal; orphans: auto; text-align: s=
tart; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text=
-decoration: none; caret-color: rgb(0, 0, 0); ; ;"></span><span style=3D=
" font-variant-caps: normal; letter-spacing: normal; orphans: auto; t=
ext-align: start; text-indent: 0px; text-transform: none; white-space=
: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width:=
0px; text-decoration: none; caret-color: rgb(0, 0, 0); ; ;"></span><s=
pan style=3D" font-variant-caps: normal; letter-spacing: normal; orphan=
s: auto; text-align: start; text-indent: 0px; text-transform: none; =
white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-s=
troke-width: 0px; text-decoration: none; caret-color: rgb(0, 0, 0); ; =
;"></span><span style=3D" font-variant-caps: normal; letter-spacing: norm=
al; orphans: auto; text-align: start; text-indent: 0px; text-transf=
orm: none; white-space: normal; widows: auto; word-spacing: 0px; -w=
ebkit-text-stroke-width: 0px; text-decoration: none; caret-color: rgb(0=
, 0, 0); ; ;"></span><span style=3D" font-variant-caps: normal; letter-s=
pacing: normal; orphans: auto; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: auto; word-spacin=
g: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; caret-=
color: rgb(0, 0, 0); ; ;"></span><span style=3D" font-variant-caps: normal=
; letter-spacing: normal; orphans: auto; text-align: start; text-in=
dent: 0px; text-transform: none; white-space: normal; widows: auto; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: no=
ne; caret-color: rgb(0, 0, 0); ; ;"></span><span style=3D"caret-color: r=
gb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; orpha=
ns: auto; text-align: start; text-indent: 0px; text-transform: none; =
white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-=
stroke-width: 0px; text-decoration: none; ; ;"></span><span><img alt=3D"=
Screen Shot 2021-09-09 at 4.00.37 PM.png" src=3D"cid:475EEECD-23C0-42CC-9C8=
D-820B6D337AAF" width=3D"189"/></span><meta charset=3D"UTF-8"/><defangedfon=
t face=3D"HelveticaNeue" style=3D" font-variant-caps: normal; letter-spac=
ing: normal; orphans: auto; text-align: start; text-indent: 0px; te=
xt-transform: none; white-space: normal; widows: auto; word-spacing: =
0px; -webkit-text-stroke-width: 0px; text-decoration: none; caret-col=
or: rgb(0, 0, 0); ; ;"><span style=3D" font-variant-caps: normal; letter=
-spacing: normal; text-align: start; text-indent: 0px; text-transform=
: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-w=
idth: 0px; text-decoration: none; caret-color: rgb(43, 41, 42); ; ;"><=
br class=3D"Apple-interchange-newline"/><defangedfont size=3D"2">The Univer=
sity of Alberta respectfully acknowledges=C2=A0</defangedfont></span><span =
style=3D" font-variant-caps: normal; letter-spacing: normal; text-align=
: start; text-indent: 0px; text-transform: none; white-space: normal;=
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; caret-color: rgb(0, 0, 0); ; ;"><span style=3D" font-variant-caps:=
normal; letter-spacing: normal; text-align: start; text-indent: 0px;=
text-transform: none; white-space: normal; word-spacing: 0px; -web=
kit-text-stroke-width: 0px; text-decoration: none; caret-color: rgb(43,=
41, 42); ; ;"><defangedfont size=3D"2">that we are situated on=C2=A0</def=
angedfont></span></span></defangedfont><div style=3D" font-variant-caps: no=
rmal; letter-spacing: normal; orphans: auto; text-align: start; tex=
t-indent: 0px; text-transform: none; white-space: normal; widows: aut=
o; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration=
: none; caret-color: rgb(0, 0, 0); ; ;"><span style=3D"caret-color: rgb(=
0, 0, 0); font-variant-caps: normal; letter-spacing: normal; text-ali=
gn: start; text-indent: 0px; text-transform: none; white-space: norma=
l; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration=
: none; ; ;"><defangedfont face=3D"HelveticaNeue" size=3D"2"><span style=
=3D" font-variant-caps: normal; letter-spacing: normal; text-align: sta=
rt; text-indent: 0px; text-transform: none; white-space: normal; wo=
rd-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;=
caret-color: rgb(43, 41, 42); ; ;">Treaty 6 territory, traditional=C2=
=A0</span><span style=3D" font-variant-caps: normal; letter-spacing: norm=
al; text-align: start; text-indent: 0px; text-transform: none; whit=
e-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; t=
ext-decoration: none; caret-color: rgb(43, 41, 42); ; ;">lands of First =
Nations and M=C3=A9tis people.</span></defangedfont></span></div>
</div>
<div><br/><blockquote type=3D"cite"><div>Begin forwarded message:</div><br =
class=3D"Apple-interchange-newline"/><div style=3D"margin-top: 0px; margi=
n-right: 0px; margin-bottom: 0px; margin-left: 0px; ; ;"><span style=
=3D""><b>From: </b></span><span style=3D"">"Bob Berno" <bberno_at_m=
cmaster.ca><br/></span></div><div style=3D"margin-top: 0px; margin-rig=
ht: 0px; margin-bottom: 0px; margin-left: 0px; ; ;"><span style=3D""><=
b>Subject: </b></span><span style=3D""><b>Re: [AMMRL] UPS for the Haskris u=
nit? #UPS #Hardware #Haskris</b><br/></span></div><div style=3D"margin-top:=
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ; ;">=
<span style=3D""><b>Date: </b></span><span style=3D"">July 15, 2024 at 10:1=
3:18=E2=80=AFAM MDT<br/></span></div><div style=3D"margin-top: 0px; margi=
n-right: 0px; margin-bottom: 0px; margin-left: 0px; ; ;"><span style=
=3D""><b>To: </b></span><span style=3D"">main_at_ammrl.groups.io<br/></span></=
div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0p=
x; margin-left: 0px; ; ;"><span style=3D""><b>Resent-From: </b></span><s=
pan style=3D"">bberno_at_mcmaster.ca<br/></span></div><div style=3D"margin-top=
: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ; ;"=
><span style=3D""><b>Reply-To: </b></span><span style=3D"">main_at_ammrl.group=
s.io<br/></span></div><br/><div><meta charset=3D"UTF-8"/><span style=3D"car=
et-color: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: norm=
al; text-align: start; text-indent: 0px; text-transform: none; whit=
e-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; t=
ext-decoration: none; float: none; display: inline !important; ; ;">He=
llo TJ,</span><br style=3D"caret-color: rgb(0, 0, 0); font-variant-caps: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; -webk=
it-text-stroke-width: 0px; text-decoration: none; ; ;"/><br style=3D"car=
et-color: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: norm=
al; text-align: start; text-indent: 0px; text-transform: none; whit=
e-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; t=
ext-decoration: none; ; ;"/><span style=3D"caret-color: rgb(0, 0, 0); fo=
nt-variant-caps: normal; letter-spacing: normal; text-align: start; t=
ext-indent: 0px; text-transform: none; white-space: normal; word-spac=
ing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; floa=
t: none; display: inline !important; ; ;">I hope you can sort out the pr=
oblem.=C2=A0<span class=3D"Apple-converted-space">=C2=A0</span></span><br s=
tyle=3D"caret-color: rgb(0, 0, 0); font-variant-caps: normal; letter-sp=
acing: normal; text-align: start; text-indent: 0px; text-transform: n=
one; white-space: normal; word-spacing: 0px; -webkit-text-stroke-widt=
h: 0px; text-decoration: none; ; ;"/><span style=3D"caret-color: rgb(0, =
0, 0); font-variant-caps: normal; letter-spacing: normal; text-align:=
start; text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: n=
one; float: none; display: inline !important; ; ;">On a related note, =
if point 3(b) - that your UPS can't handle the power spike when pumps/c=
ompressors power on - is the root cause of your problem, then when the UPS =
fails, it may automatically switch to "bypass" mode - which I menti=
oned in point 3 (c).<span class=3D"Apple-converted-space">=C2=A0</span></sp=
an><br style=3D"caret-color: rgb(0, 0, 0); font-variant-caps: normal; l=
etter-spacing: normal; text-align: start; text-indent: 0px; text-tran=
sform: none; white-space: normal; word-spacing: 0px; -webkit-text-str=
oke-width: 0px; text-decoration: none; ; ;"/><br style=3D"caret-color: r=
gb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; text-=
align: start; text-indent: 0px; text-transform: none; white-space: no=
rmal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decorat=
ion: none; ; ;"/><span style=3D"caret-color: rgb(0, 0, 0); font-variant-=
caps: normal; letter-spacing: normal; text-align: start; text-indent:=
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important; ; ;">Regarding the automatic switch to city wa=
ter:=C2=A0 that was a feature in the particular model of HASKRIS chiller we=
ordered.=C2=A0 I had asked about backup city water. They said that if we c=
ould but the necessary plumbing in pace, they could sell us a chiller that =
could automatically switch between chilled water and city water.=C2=A0<span=
class=3D"Apple-converted-space">=C2=A0</span></span><br style=3D"caret-col=
or: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-spac=
e: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-de=
coration: none; ; ;"/><span style=3D"caret-color: rgb(0, 0, 0); font-var=
iant-caps: normal; letter-spacing: normal; text-align: start; text-in=
dent: 0px; text-transform: none; white-space: normal; word-spacing: 0=
px; -webkit-text-stroke-width: 0px; text-decoration: none; float: non=
e; display: inline !important; ; ;">NOTE:=C2=A0 once the system switches=
to city water, one has to manually switch back to chilled water.=C2=A0 I t=
hink that is a safety feature, which makes sense.=C2=A0<span class=3D"Apple=
-converted-space">=C2=A0</span></span><br style=3D"caret-color: rgb(0, 0, 0=
); font-variant-caps: normal; letter-spacing: normal; text-align: sta=
rt; text-indent: 0px; text-transform: none; white-space: normal; wo=
rd-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;=
; ;"/><br style=3D"caret-color: rgb(0, 0, 0); font-variant-caps: normal=
; letter-spacing: normal; text-align: start; text-indent: 0px; text=
-transform: none; white-space: normal; word-spacing: 0px; -webkit-tex=
t-stroke-width: 0px; text-decoration: none; ; ;"/><span style=3D"caret-c=
olor: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-sp=
ace: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-=
decoration: none; float: none; display: inline !important; ; ;">For yo=
ur reference, our HASKRIS chiller model is: INDOOR=C2=A0 WW2-230V-10-60Hz</=
span><br style=3D"caret-color: rgb(0, 0, 0); font-variant-caps: normal; =
letter-spacing: normal; text-align: start; text-indent: 0px; text-tr=
ansform: none; white-space: normal; word-spacing: 0px; -webkit-text-s=
troke-width: 0px; text-decoration: none; ; ;"/><br style=3D"caret-color:=
rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; tex=
t-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decor=
ation: none; ; ;"/><span style=3D"caret-color: rgb(0, 0, 0); font-varian=
t-caps: normal; letter-spacing: normal; text-align: start; text-inden=
t: 0px; text-transform: none; white-space: normal; word-spacing: 0px;=
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important; ; ;">Good luck,</span><br style=3D"caret-col=
or: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-spac=
e: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-de=
coration: none; ; ;"/><span style=3D"caret-color: rgb(0, 0, 0); font-var=
iant-caps: normal; letter-spacing: normal; text-align: start; text-in=
dent: 0px; text-transform: none; white-space: normal; word-spacing: 0=
px; -webkit-text-stroke-width: 0px; text-decoration: none; float: non=
e; display: inline !important; ; ;">Bob.</span><br style=3D"caret-color:=
rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; tex=
t-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decor=
ation: none; ; ;"/><br style=3D"caret-color: rgb(0, 0, 0); font-variant-=
caps: normal; letter-spacing: normal; text-align: start; text-indent:=
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; ; ;"/><div class=
=3D"moz-cite-prefix" style=3D"caret-color: rgb(0, 0, 0); font-variant-cap=
s: normal; letter-spacing: normal; text-align: start; text-indent: 0p=
x; text-transform: none; white-space: normal; word-spacing: 0px; -w=
ebkit-text-stroke-width: 0px; text-decoration: none; ; ;">On 2024-07-15 =
11:33 a.m., Thusitha Jayasundera via<span class=3D"Apple-converted-space">=
=C2=A0</span><a href=3D"
https://urldefense.com/v3/__http://groups.io/__;!!P=
vDODwlR4mBZyAb0!QPqi_Y-niQqp3bY68BrOubPWOF5g_pdoyOm_kg5mtOnkjE25_FW_RE_ey4v=
pr_ZjoVGJmQy05geE4cOG$">groups.io</a><span class=3D"Apple-converted-space">=
=C2=A0</span>wrote:<br/></div><blockquote type=3D"cite" cite=3D"mid:1227.17=
21057636077632630_at_groups.io" style=3D" font-variant-caps: normal; letter-=
spacing: normal; orphans: auto; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: auto; word-spaci=
ng: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; ; ;"><=
table width=3D"100%" cellspacing=3D"0" cellpadding=3D"0" border=3D"0" align=
=3D"left" style=3D"border: 0px; display: table; width: 1436px; table-=
layout: fixed; float: none; ; ;"><tbody style=3D"display: block; ; ;"><=
tr><td cellpadding=3D"7px 2px 7px 2px" width=3D"1px" valign=3D"middle" defa=
ngedbgcolor=3D"#A6A6A6" style=3D"padding: 7px 2px; ; ;"><br/></td><td cell=
padding=3D"7px 5px 7px 15px" width=3D"100%" valign=3D"middle" defangedbgcol=
or=3D"#EAEAEA" style=3D"width: 1402px; padding: 7px 5px 7px 15px; text-=
align: left; overflow-wrap: break-word; ; ;"><div>You don't often ge=
t email from<span class=3D"Apple-converted-space">=C2=A0</span><a class=3D"=
moz-txt-link-abbreviated" href=3D"mailto:thusitha.jayasundera=3Dbc.edu_at_grou=
ps.io">thusitha.jayasundera=3Dbc.edu_at_groups.io</a>.<span class=3D"Apple-con=
verted-space">=C2=A0</span><a href=3D"
https://urldefense.com/v3/__https://a=
ka.ms/LearnAboutSenderIdentification__;!!PvDODwlR4mBZyAb0!QPqi_Y-niQqp3bY68=
BrOubPWOF5g_pdoyOm_kg5mtOnkjE25_FW_RE_ey4vpr_ZjoVGJmQy05ktVolds$" moz-do-no=
t-send=3D"true">Learn why this is important</a></div></td><td cellpadding=
=3D"7px 5px 7px 5px" width=3D"75px" valign=3D"middle" defangedbgcolor=3D"#E=
AEAEA" align=3D"left" style=3D"width: 75px; padding: 7px 5px; text-alig=
n: left; overflow-wrap: break-word; ; ;"><br/></td></tr></tbody></table>=
<div><table width=3D"100%" cellspacing=3D"0" cellpadding=3D"0" border=3D"0"=
align=3D"left"><tbody><tr><td style=3D"background: rgb(122, 0, 60); padd=
ing: 5pt 2pt; ; ;"><br/></td><td cellpadding=3D"7px 6px 7px 15px" width=3D=
"100%" style=3D"padding: 5pt 4pt 5pt 12pt; overflow-wrap: break-word; ; =
;"><div><span>Caution:<span class=3D"Apple-converted-space">=C2=A0</span></=
span>External email.<span class=3D"Apple-converted-space">=C2=A0</span></di=
v></td></tr></tbody></table><br/><div><p>Thanks Bob--I know that we definit=
ely do not have a city water backup. I wasn't even aware that this was =
a possibility, and should check on this immediately. Thus far, the issue ha=
s always occurred during a power switch, and I think the point you make in =
3 (b) is likely where we went wrong--so I should look into that as well.<br=
/><br/>Much appreciation to both of you for your suggestions!<br/><br/>Best=
,<br/><br/></p><p>TJ.</p></div></div></blockquote><br style=3D"caret-color:=
rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: normal; tex=
t-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decor=
ation: none; ; ;"/><defangedpre class=3D"moz-signature" cols=3D"72" style=
=3D"caret-color: rgb(0, 0, 0); font-variant-caps: normal; letter-spacin=
g: normal; text-align: start; text-indent: 0px; text-transform: none;=
white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0=
px; text-decoration: none; ; ;">-- Dr. Bob Berno Manager, NMR Facility M=
cMaster University, ABB-156 1280 Main St. West Hamilton, ON L8S 4M1 T: 905-=
525-9140 x24158 or x24686 -------------------------------------------------=
--------------------------------------- This email contains CONFIDENTIAL in=
formation intended for the specific recipient(s). If you have an accommodat=
ion need for a planned meeting, please e-mail me directly and I will do my =
best to make appropriate arrangements. Should you require any materials sen=
t via this e-mail address in an alternate/accessible format, please let me =
know. McMaster University sits on the traditional Territories of the Missis=
sauga and Haudenosaunee Nations, and within the lands protected by the "=
;Dish With One Spoon" wampum agreement.</defangedpre><span style=3D"car=
et-color: rgb(0, 0, 0); font-variant-caps: normal; letter-spacing: norm=
al; text-align: start; text-indent: 0px; text-transform: none; whit=
e-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; t=
ext-decoration: none; float: none; display: inline !important; ; ;"></=
span></div></blockquote></div><br/></div>
<div width=3D"1" style=3D"color:white;clear:both">_._,_._,_</div>
<hr>
Groups.io Links:<p>
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Received on Mon Jul 15 2024 - 09:14:04 MST