Submittal Sheet

SDCR SLAVE DAMPER CONTROL RELAY
Wiring the SDCR to a Trol-A-Temp
TRT Thermostat and HCRS Subbase.
Wiring the SDCF? to any Trol-A-Temp
Thre6 Wire Con
trol Patiel.
Model ARD-PC
Model ARD-PC Thermostat and Subbase
Model TFtl(-W)/HCRS(-W)
Terminals on
Control Panel
Model ARD-PC Modd ARD-PC
TaoL-A-TEW
EW PARK. N.J.
MODEL
SDCR
i.
0 M6
IL
M6
24V. 4oVA
lmmtomu
MO&l PMT-40
24V. 4OVA
TmWbJWtW
Modd PMTao
INTERNAL WIRING DIAGRAM
CHECKOUT PROCEDURE
1 . Check for 24 Volts, A.C. across terminals 1 and 2. If
there is no voltage or less than 20 Volts A.C., check the
transformer and power supply.
M6
M4
Ml
M6
2. Check for 24 Volts A.C. across the C and C terminals.
When there is no voltage present the SDCR is de-
energized. This will provide 24V. to each set of Ml and
M6 terminals. Typically, Ml and M6 are used to power the
dampers Closed. If there is no voltage on any of the Ml
and M6 terminals, remove and replace the plug-in relay. If
there continues to be no power across these terminals,
replace the panel.
M6
M4
Ml
M6
M4
Ml
3. When 24 Volts A.C. is present across the C and C
terminals, the plug-in relay is energized. This switches
24V. power from the Ml and M6 terminals to Ml and M4,
in order to power open the dampers. If the plug-in relay is
not energized, remove the relay and replace firmly in the
socket. The relay should click, indicating the relay has
energized. If the relay is energized and there is no power
at Ml and M4, replace the relay.
4. The SDCR can be checked with an Ohm Meter, by
testing for continuity between the terminals and relay
socket points, shown on the diagram below.
Honewell
Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis MN 55408-0524
Home and Building Control
Honeywell Limited-Honeywell Limitee
155 Gordon Baker Road
North York, Ontario
M2H 3N7
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
68-0224 G.H. 6-00
www. honeywell .com