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WARNING: Hazard of Electric Shock. Disconnect all
power before installing heater.
WARNING: Hazard of Electric Shock. Any installation
involving electric heaters must be effectively ground-
ed in accordance with the National Electrical Code.
WARNING: This heater is not intended for use in haz-
ardous atmospheres where flammable vapors, gases,
liquids or other combustible atmospheres are present
as defined in the National Electrical Code. Failure to
comply can result in explosion or fire.
1. Check that the electrical service is the same on the nameplate.
2. Determine desired mounting location per instructions on
nameplate.
3. Remove connection box cover.
4. Bring in correct fused electrical service to appropriate knock-
out. Suitable for 75˚C field wiring.
Chromalox
®
DIVISION
4
SECTION
CPHH
SALES
REFERENCE
DATE
SERVICE REFERENCE
PF477-2
161-562516-001
MARCH, 1999
(Supersedes PF477-1)
Installation, Operation
and
MAINTENANCE
© 2010 Chromalox, Inc.
Type CPHH — Pumphouse Utility Heater
INSTALLATION
Specifications
Model Volts Watts Amps BTUH
Length Weight
Stock PCN
(In.) (Lbs.)
CPHH-50011 120 500 4.2 1707 17-3/8 5.0 S 350190
CPHH-50031 208 375 1.8 1280 17-3/8 5.0 S 350203
CPHH-50031 240 500 2.1 1707 17-3/8 5.0 S 350203
WIRING
Electric wiring to heater must be installed in accordance with the
National Electrical Code and with local codes by a qualified person.
WARNING: Use copper conductors only.
1. Wire per appropriate wiring diagram below, connecting
ground wire to green ground screw.
2. On 120V units, the thermostats must be in the hot line.
3. Fasten heater to wall using four wood screws or screw
anchors.
4. Replace connection box cover.
Wiring Diagrams —
L1
N
Stat
Black
White
120V 1Ø 60 Hz
L1
L2
StatBlack
Black
240V 1Ø 60 Hz
17-3/8
16-7/8
1/4" Dia. (4 pts.)
1-1/2
3-13/16
5-1/2
2
2-1/4
7/8" Dia. K.O.