Carrier 50TCQD14 Installation Instructions Manual page 23

Inputs
Point Name
G Fan
Y1 Cool 1
Y2 Cool 2
W1 Heat 1
W2 Heat 2
R Power
C Common
DFT1
DFT 2
Outputs
Point Name
IFO Fan On
OF OD Fan On
RVS1
RVS2
COMP 1
COMP 2
HEAT 2
COM
Configuration
Point Name
Select Jumper
2 Compressor
Speed- - Up Configuration
Point Name
Speed --- Up Jumper
Speed --- Up Jumper
Jumper for 1--- 3 seconds: Factory Test — The defrost interval timing is reduced by a factor of 0.1 seconds/minute based on the positions of
DIP switches SW1 and SW2 (i.e. 90 minutes will be reduced to 9 seconds).
Jumper for 5--- 20 seconds: Forced Defrost — Defrost runs for 30 seconds if DFT2 is open.
Switch No.
1 2
1
J
0
J
30 minutes
Table 5 – 50TCQ Defrost Board I/O and Jumper Configurations
Type of I/O Connection Pin Number
DI, 24Vac
DI, 24Vac
DI, 24Vac
DI, 24Vac
DI, 24Vac
24Vac
24Vac
DI, 24Vac DFT--- 1 to DFT--- 1
DI, 24Vac DFT--- 2 to DFT--- 2
Type of I/O Connection Pin Number
DO, 24Vac
DO, 24Vac
DO, 24Vac P3--- 7 to P3--- 5
DO, 24Vac P3--- 6 to P3--- 4
DO, 24Vac
DO, 24Vac
DO, 24Vac E--- HEAT
24Vac
Type of I/O Connection Pin Number
24Vac
24Vac
Type of I/O Connection Pin Number
—
—
Fig. 36 - - Defrost Control Board Location
Table 6 – DIP Switch Position
1 2
1 1
J
0 0
J
60 minutes
(Factory default)
Unit Connection
P2--- 3
P2--- 5 CTB--- Y1
P2--- 4 CTB--- Y2
P2--- 7 CTB--- W1
P2--- 6 CTB--- W2
P3--- 1 CONTL BRD--- 8
P3--- 2 CONTL BRD--- 4
Unit Connection
P3--- 9 REHEAT/HP--- 2
OF
P3--- 10 FPT1 --- REHEAT/HP--- 6
P3--- 8 FPT2 --- REHEAT/HP--- 8
P3--- 3
Unit Connection
P1--- 1
P1--- 3
Unit Connection
JMP17
JMP18
1 2
1
0
J J
90 minutes
23
Note
CTB--- G
—
—
Note
OFR
— Energize in COOL
— Energize in COOL
TB4--- 1
TB4--- 3
Note
—
— Use for 50TCQD
Note
—
—
1 2
1
J J
0
120 minutes Fan Delay
a50_9709
3
On
J
Off