Manual de instrucciones de Chromalox NWHO(F)-27

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®
Chromalox
SERVICE REFERENCE
Installation
DIVISION 4 SECTION NWHO
and
SALES
REFERENCE (Supersedes PE437) PE437-1
RENEWAL PARTS IDENTIFICATION
161-303184-001
DATE APRIL, 1999
Type NWHO(F)-27 Series Circulation Heater
(for Regular and Fuel Oil Heating)
Thermostat
Specifications — Table A
(When Specified)
Regular Oil Heaters
3 - 1-3/8" K.O.
Dimensions (In.)
for 1" Conduit
15-15/16"
2
Model Volts Phase kW W/In ABC
3" Pipe
Outlet (Std.)
NWHO-2780R15 240 or 480

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WIRING WARNING: Hazard of Shock. Any installation involving electric heaters must be effectively grounded in 1L1 3L1 accordance with the National Electrical Code to elim- inate shock hazard. 1L2 3L2 1. Electrical wiring to heater must be installed in accordance with the National Electrical Code and local electrical codes by a qualified 3L3 1L3 person as defined in the NEC. 2. Because of the high operating temperatures expected, aluminum wiring is not recommended. 2L1 3. Refer to wiring Diagram F