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Lochinvar
Relief Valve
NOTE:
This water heater is supplied with
Incorrect piping
temperature and pressure relief valve(s)
of the cold water
supply to the
sized in accordance with ASME Boiler and
system will result
Pressure Vessel Code, Section IV "Heating
in condensate formation
Boilers."
on the heat exchanger
and operational
(TABLE H) – COMMON WATER MANIFOLD
problems. Higher water
temperatures reduce
Pipe sizing chart provides minimum pipe size for
condensate formation.
common manifold piping to ensure adequate flow.
Refer to drawings in
Appendix A.
NOTE:
When the unit is
installed in Canada, it
must conform to the
CAE C22.1, Canadian
Electrical Code, Part 1,
and/or local Electrical
Codes.
14
L o c h i n v a r
SIZE FOR MULTIPLE WATER HEATER
INSTALLATION
NUMBER OF
COMMON MANIFOLD SIZE
UNITS
(Min.)
CW 495 thru 745
1
2"
2
3"
3
3
1
4
4"
5
5"
6
5"
CW 986 thru 2066
1
2
1
2
4"
3
4"
4
5"
5
6"
6
6"
'
D E S I G N E R
S G U I D E C O P P E R
ELECTRICAL REQUIREMENTS
(North America)
The appliance is wired for 120 volts.
1.
All wiring between the unit and field
installed devices shall be made of type
T wire [63°F (35°C) rise].
The pump must be wired to run
2.
continuously when unit is firing.
It is recommended that the water heater
3.
and pump be wired on separate circuits
with properly sized breakers.
"
/
2
(TABLE I) – AMP DRAW DATA
MODEL
/
"
2
NUMBER
CW 495-745
CW 986-1256
CW 1436-2066
-
F I N W A T E R H E A T E R
FAN(S)
CONTROLS
PUMP
TOTAL AMPS
w/PUMP
3.4
4.6
5.8
13.8
3.4
4.6
7.4
15.4
3.8
4.6
7.4
15.8
6 1 5 - 8 8 9 - 8 9 0 0
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