I) i a – Honeywell Q539F User Manual
Page 6
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Q539An'87F
HEATING
DAMPER
MOTOR
(IF USED)
WITCH
_C
“
A
■^T
-0^1
COOLING
DAMPER
MOTOR
(IF USED)
“1“
A
A
X TERMINAL IS USED ON 0539 MODELS WITH FACTORY-
INSTALLED INDICATOR LED,
A
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
A
ISOLATING RELAY.
A
VALVE OR RELAY WITH SEPARATE POWER SUPPLY MAY BE USED
IN PLACE OF OIL PRIMARY AS SHOWN BY BROKEN LINE.
FIG.
2—Q539A,B
IN
HEATING-COOLING
APPLICA
TION
WITH
DAMPER
MOTORS
AND
ISOLATION RELAY.
Q539ATr87F
A POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
A
CONNECT VALVE OR RELAY TO O FOR CHANGEOVER IN COOLING
OR B FOR CHANGEOVER IN HEATING.
A
X TERMINAL IS USED ON Q539 MODELS WITH FACTORY-INSTALLED
INDICATOR LED.
A
RECOMMENDED HEAT ANTICIPATOR SETTING ON HEAT PUMPS IS
140% OF THE TOTAL COMBINED CURRENT DRAW OF THE FAN AND
COMPRESSOR RELAYS. STANDARD HEATING SYSTEMS CYCLE AT
5 TO 6 CPH AND HEAT PUMP SYSTEMS CYCLE AT 2.5 TO 3 CPH ON
EITHER HEATING OR COOLING.
^
FIG. 3—Q539A IN HEAT PUMP APPLICATION.
/K
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
A
k
valve
or
relay
with
separate
power
supply
may
BE USED
IN PLACE OF OIL PRIMARY AS SHOWN BY BROKEN LINE.
A\
THIS SUBBASEH-HERMOSTAT COMBINATION IS ALSO USED WITH
ELECTRIC HEATING COMPONENTS OR PANELS USING BOTH AC
AND DC CONTROL CIRCUITS.
FIG. 4—Q539A1147 IN HEATING-COOLING APPLICATION WITH ISOLATED CIRCUITS.