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international.com
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit
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33
R
Re
effe
er
re
en
nc
ce
e d
diim
me
en
ns
siio
on
ns
s a
ar
re
e ±
± 1
10
0%
%
A
Allll d
diim
me
en
ns
siio
on
ns
s a
ar
re
e ±
± 1
1"
"
MM/DD/YY
MM/DD/YY
1/2"=1'
Custom
Dwg No.
Customer / Job name:
Scale:
Description:
Date:
Drawn/
Revised by:
Checked/
Apv. by:
Revision:
Description:
Date:
Drawn/
Revised by:
Checked/
Apv. by:
Revision:
AE
09/17/10
Schematic Piping Diagram
PID (1)HWD to (1)HET CWIS & TMV
CD
WH
CD
CNK
LEGEND
HWR
HWS
CD
WH
CNK
HET
DRV
TWR
TWS
ET
CW
TS
Hot Water Supply
Hot Water Return
Cold Water
Tempered Water Supply
Tempered Water Return
Condensate Drain
Water Heater with Stand
Storage Tank
Expansion Tank
Condensate Neutralizer
Digital Recirculation
Valve
Thermometer
Pump
Ball valve
Check valve
Aquastat
Flow direction
Pressure Relief valve
Ball Valve with built-in Drain
Valve
Gas cock
Drain valve
Air vent
Temperature Sensor
Floor drain
Cold Water Injection System
CWIS
CW
H
WR
TWR
TWS
H
WS
CW
CW
HWS
H
WR
TWR
DRV
HET
ET
CWIS
To System
From System
Make-up
Water
TS
From Tank
To Tank
AE
12/17/10
1
One Water Heater Schematic To Single Tank With Mixing Valve And CWIS
™
Three Water Heater Schematic To Single Tank
R
Re
effe
er
re
en
nc
ce
e d
diim
me
en
ns
siio
on
ns
s a
ar
re
e ±
± 1
10
0%
%
A
Allll d
diim
me
en
ns
siio
on
ns
s a
ar
re
e ±
± 1
1"
"
MM/DD/YY
MM/DD/YY
1/2"=1'
Custom
Dwg No.
Customer / Job name:
Scale:
Description:
Date:
Drawn/
Revised by:
Checked/
Apv. by:
Revision:
Description:
Date:
Drawn/
Revised by:
Checked/
Apv. by:
Revision:
5562
Schematic Piping Diagram
PID (3)HWD to (1)HET
CW
HET
H
WS
HET
To System
CW
TS
CW
H
WR
H
WR
ET
From System
Make-up
Water
LEGEND
HWR
Hot Water Return
HWS
Hot Water Supply
CD
Condensate Drain
WH
Water Heater with Stand
Pump
Ball valve
Check valve
Flow direction
Pressure Relief valve
CNK
Condensate Neutralizer
HET
Storage Tank
Thermometer
ET
Expansion Tank
Drain valve
Air vent
Ball Valve with built-in Drain
Valve
Gas cock
CW
Cold Water
Temperature Sensor
Aquastat
Floor drain
TS
CD
From Tank
To Tank
WH-1
CNK
WH-3
WH-2
CD
CD
CD
AE
09/17/10
AE
12/17/10
1
IMPORTANT NOTE: The above are representative drawings; must conform to local codes. Consult factory for Custom System
Solutions.
Piping - continued