Manufacturer reserves the right to discontinue, or change at any time, specificat ions or designs without notice and without incurrin g obligations.

PC 111 Catalog No. 534-80082 Pri nted in U.S.A. Form 48/50H,T-15SI Pg 8 8-01 Replaces: 48/50H,T-2SI

Book111444

Tab 1a1b5a5a6a6b

Copyright 2001 Carrier Corporation

GROUND
TRAN
24 VAC
20 VA
(FIELD
SUPPLIED)
24 V
H G 24 VAC
OR
+ - 24 VDC 2 1 8 7 6 5 4 3 2 1
+
+
-2-10VDC
SIG COM (J5-3)
4-20mA (J5-2)
NC
COM
NO
ALARM
RELAY
CONTACTS
TAN
VIO
WHT
RED
OAT
VIO
PNK DAT
EC
ACCESSORY
ONLY
OAT
COM
OAH
+15V
RAT
COM
RAH
+15V
CO2+
CO2 COM
DAT
COM
REM POT
COM
LED
COM
CONTROLLER
B1
Y1
Y2
G
COM
AO
24 VAC
24 COM
GND
CLG1
CLG2
ECONOMI$ER OPTION/ACCESSORY
RED
BLU
PNK
BRN
GRN
DM
YEL
WHT
BLK
FAN
HEAT 2
HEAT 1 NC
HEAT 1
HEAT/FAN COM
COOL 2
COOL 1
COOL COM
R
C
GROUND
24 VAC/10 VA
AUXILIARY
RELAY**
TO CARRIER
HVAC UNIT
FIELD SUPPLIED
WIRING
13
12
11
10
9
8
7
6
5
4
3
2
1
1234FAN RV
SINGLE ZONE
RELAY PACK
WITH AUXILARY
RELAY
COOL HEAT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
SINGLE ZONE RELAY PACK CIRCUIT BOARD
OAT SAT DX
FAN STATUS
IAQ STATUS†
WHT
RED
BLU
YEL
GRN
WHT
RED
GRN
BLK
GRN
BLK
FILTER
STATUS
HUMIDITY
SENSOR
TSP01
TERMINAL
NUMBER
#1
#2
#10
#11
#10
#11
ADDITIONAL SENSORS*
BLK
RED
REMOTE ROOM
TEMP. SENSOR
NETWORK BLK
RED
GRN
INDOOR AIR QUALITY (CO ) SENSOR
(33ZCSENCO2) TYPICAL WIRING DIAGRAM
2
JUMPERS

LEGEND

CO2—Carbon Dioxide

COM — Common

DAT — Discharge Air Thermistor

DM — Damper Motor

DX — Direct Expansion Coil Sensor

EC — Enthalpy Control

HVAC— Heating, Ventilation, and Air Conditioning

IAQ — Indoor-Air Quality

NC — Normally Closed

OAT — Outdoor-Air Thermostat

RV — Reversing Valve

SAT — Supply-Air Temperature Sensor

TEMP— Temperature

TRAN— Transformer (Field Supplied)

VTS — Carrier TEMP System

VVT® — Variable Volume/Variable Temperature

Field-Supplied Wiring

*Filter status switch and humidity sensor cannot function simultaneously. Only one sensor can be wired.

†Such as a CO2 sensor.

**Set auxiliary option to “2” — IAQ Control per VTS or VVT Installation Instructions.

NOTE: Sensors are field-supplied and wired.

Fig. 10 — Apollo Wiring as Part of an Indoor-Air Quality System