Chromalox Switch HVS 02 User Manual

®
Chromalox  
SERVICE REFERENCE  
Installation Instructions  
DIVISION  
SALES  
4
SECTION  
and  
REFERENCE  
PF206-1  
RENEWAL PARTS IDENTIFICATION  
161-305684-001  
DATE  
MAY, 2007  
Summer Fan Switch Kit With Relay  
Model HVS-02 and HVS-03  
Fan Switch  
Wall Plate  
Mounting  
3 Pole Relay  
Hardware  
GENERAL  
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.  
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.  
INSTALLATION  
FIGURE 1  
TRANSFORMER ON 480V HEATERS  
OPTIONAL ON 277V OR LESS  
HEATERS  
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.  
1/2" Ø K.O.  
(ACTUAL DIAMETER)  
3. If the fan only switch is to be remotely mounted, the switch enclo-  
sure, conduit and wiring is to be provided by others.  
CONTACTOR  
Figure 1  
© 2010 Chromalox®, Inc.  
 
WIRING (cont’d.)  
OPTIONAL THERMOSTAT  
1 OR 3Ø  
M
BUILT-IN OR REMOTE  
(WHEN THERMOSTAT IS NOT  
USED THERE'S A JUMPER  
BETWEEN C1 AND C2)  
TERMINAL  
BLOCK  
X2  
H2  
X1  
H1  
T1 T2 T3  
C1  
C2 C3  
TRANSFORMER  
CONTACTOR  
L2 L3  
L1  
CUTOUT  
Diagram 1: Wiring before Fan Switch is added  
FAN SWITCH,  
BUILT-IN  
OR REMOTE  
MOUNTED  
OPTIONAL THERMOSTAT  
BUILT-IN OR REMOTE  
(WHEN THERMOSTAT IS NOT  
USED THERE'S A JUMPER  
BETWEEN C1 AND C2)  
1 OR 3Ø  
M
11 12  
10  
TERMINAL  
BLOCK  
8
9
3
7
1
2
CONTACTOR  
T1  
X1  
H1  
X2  
H2  
T2  
A1  
A2  
T3  
4T2  
6T3  
2T1  
C1  
C2  
C3  
TRANSFORMER  
1L1  
5L3  
3L2  
L3  
L2  
L1  
MOTOR  
RELAY  
CUTOUT  
Diagram 2: Wiring after Fan Switch is added  
 
Limited Warranty:  
Please refer to the Chromalox limited warranty applicable to this product at  
2150 N. RULON WHITE BLVD., OGDEN, UT 84404  
Phone: 1-800-368-2493  
TA - U0 - EF  
Litho in U.S.A.  
Download from Www.Somanuals.cwomww..cAhlrloMmaalnoxu.caolsmSearch And Download.  

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