Bryant 548J*14D Series, Руководство по установке

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Table 5 – 548J Defrost Board I/O and Jumper Configurations
Inputs
Point Name Type of I/O Connection Pin Number Unit Connection Note
G Fan DI, 24Vac P2---3 CTB---G
Y1 Cool 1 DI, 24Vac P2---5 CTB---Y1
Y2 Cool 2 DI, 24Vac P2---4 CTB---Y2
W1 Heat 1 DI, 24Vac P2---7 CTB---W1
W2 Heat 2 DI, 24Vac P2---6 CTB---W2
R Power 24Vac P3---1 CONTL BRD---8
C Common 24Vac P3---2 CONTL BRD---4
DFT1 DI, 24Vac DFT---1 to DFT---1 —
DFT 2 DI, 24Vac DFT---2 to DFT---2 —
Outputs
Point Name Type of I/O Connection Pin Number Unit Connection Note
IFO Fan On DO, 24Vac P3---9 REHEAT/HP---2
OF OD Fan On DO, 24Vac OF OFR
RVS1 DO, 24Vac P3---7 to P3---5 — Energize in COOL
RVS2 DO, 24Vac P3---6 to P3---4 — Energize in COOL
COMP 1 DO, 24Vac P3---10 FPT1 --- REHEAT/HP---6
COMP 2 DO, 24Vac P3---8 FPT2 --- REHEAT/HP---8
HEAT 2 DO, 24Vac E---HEAT TB4---1
COM 24Vac P3---3 TB4---3
Configuration
Point Name Type of I/O Connection Pin Number Unit Connection Note
Select Jumper 24Vac P1---1 —
2 Compressor 24Vac P1---3 — Use for 548J
Speed--Up Configuration
Point Name Type of I/O Connection Pin Number Unit Connection Note
Speed---Up Jumper — JMP17 —
Speed---Up Jumper — JMP18 —
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.
a50_9709
Fig. 36 -- Defrost Control Board Location
Table 6 – DIP Switch Position
Switch No.
1 2 1 2 1 2 1 2 3
1
J
1
J
1 1
J J
1
J
On
0
J
0
J
0
J J
0 0 Off
30 minutes
60 minutes
(Factory default)
90 minutes 120 minutes Fan Delay