Carrier Ecologic Series 3 - Page 74

74
FIELD SUPPLIED
AND POWERED
4-20 mA SIGNAL
FIELD SUPPLIED
AND POWERED
4-20 mA SIGNAL
OUTDOOR AIR THERMISTOR
5 kΩ AT 77F (25C)
(FIELD SUPPLIED)
4-20 mA
WATER
VALVE
+
-
+
-
4-20 mA SIGNAL
GENERATOR
TEMPERATURE
RESET
4-20 mA SIGNAL
GENERATOR
DEMAND LIMIT
47
46
36
35
31
28
23
22
20
19
CONDENSER ENTERING
WATER THERMISTOR
5 kΩ AT 77F (25C)
(FIELD SUPPLIED)
CONDENSER LEAVING
WATER THERMISTOR
5 kΩ AT 77F (25C)
(FIELD SUPPLIED)
+
FIELD SUPPLIED 4-20 mA
WATER VALVE
(30HXC ONLY)
SEPARATE POWER SUPPLY
REQUIRED FOR ACTUATOR
MOTOR
PSIO-2, J6 PLUG
TOP
18
17
15
14
PSIO-2, J7 PLUGS
REMOTE DUAL SETPOINT
ICE DONE
25
500 OHM, 1/2 W
A
FIELD SUPPLIE
D
RESISTOR
500 OHM, 1/2 W
A
FIELD SUPPLIE
D
RESISTOR
CONDENSER FLOW SWITCH
BOTTOM
-
32
FIELD
SUPPLIED
24 VAC
Fig. 37 — PSIO-2 Wiring for Accessories and Field-Installed Options, 30HX Units