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Chromalox
®
DIVISION
4
SECTION
SALES
REFERENCE
DATE
SERVICE REFERENCE
Installation Instructions
and
RENEWAL PARTS IDENTIFICATION
PF206-1
161-305684-001
MAY, 2007
© 2010 Chromalox
®
, Inc.
GENERAL
ELECTRIC SHOCK HAZARD. Disconnect all power
before installing or servicing fan switch. Failure to
do so could result in personal injury or property
damage. Fan switch must be installed by a quali-
fied person in accordance with the National
Electrical Code, NFPA 70.
IMPORTANT! This instruction bulletin does not
apply to heaters which have fan delay options. For
fan delay applications, contact Chromalox for spe-
cific wiring instructions.
INSTALLATION
Fan Switch
Wall Plate
Summer Fan Switch Kit With Relay
Model HVS-02 and HVS-03
FIGURE 1
1. The HVS-02 can be used on all 1 and 3 phase Chromalox HVH
heaters rated 480V or less, having both a transformer and an inte-
gral contactor. The HVS-02 is for heaters with 24 volt control cir-
cuits. The HVS-03 is for heaters with 120 volt control circuits.
Verify the control circuit voltage on the heater nameplate, and
there is a contactor and transformer inside the terminal box.
2. If the fan only switch kit is to be installed in the heater, the center
1/2" K.O. located at the bottom of the heater needs to be removed
using a chisel or similar tool.
3. If the fan only switch is to be remotely mounted, the switch enclo-
sure, conduit and wiring is to be provided by others.
1/2" Ø K.O.
(ACTUAL DIAMETER)
CONTACTOR
TRANSFORMER ON 480V HEATERS
OPTIONAL ON 277V OR LESS
HEATERS
Figure 1
3 Pole Relay
Mounting
Hardware