Carrier Ecologic Series 3 - Page 75

75
FIELD SUPPLIED
AND POWERED
4-20 mA SIGNAL
FIELD SUPPLIED
AND POWERED
4-20 mA SIGNAL
TOP
PSIO-2, J7 PLUGS
BOTTOM
4-20 mA SIGNAL
GENERATOR
TEMPERATURE
RESET
+
-
500 OHM, 1/2 WATT
FIELD SUPPLIED
RESISTOR
14
13
OUTDOOR AIR THERMISTOR
5 kΩ AT 77 F (25C)
(FIELD SUPPLIED)
20
21
22
+
-
4-20 mA SIGNAL
GENERATOR
DEMAND LIMIT
23
500 OHM, 1/2 WATT
FIELD SUPPLIED
RESISTOR
47
46
PSIO-2, J6 PLUG
49
50
VIO
GRA
VIO
GRA
VIO
GRA
VIO
GRA
MOTORMASTER®
OPTION (080-150, 160)
CIRCUIT A (151, 161-350)
MOTORMASTER
OPTION
CIRCUIT B (151, 161-350)
31
28
REMOTE DUAL SETPOINT
ICE DONE
25
34
STAGE 2
STAGE 1
DEMAND LIMIT
EXTERNAL
SWITCH
35
FIELD
SUPPLIED
24 VAC
24
SPACE TEMPERATURE
SENSOR
10 kΩ AT 77F (25C)
(FIELD SUPPLIED)
Fig. 38 — PSIO-2 Wiring for Accessories and Field-Installed Options, 30GX Units
30GX ONLY