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16
Fig. 19 -- Humidi--MiZer Reheat Control Board I/O
Point Name
Type
Connection
Pin Number
Unit
Connection
Note
Humidistat/LTLO
DI, 24VAC
J1A---1 (1)
LTLO
Thermostat W1
DI, 24VAC
J1A---2 (2)
CTB---REHEAT---4
Econ Y1
DI, 24VAC
J1A---6 (6)
CTB---REHEAT---5
Thermostat G
DI, 24VAC
J1B---1 (7)
CTB---REHEAT---1
24V Power (J1)
24VAC
J1B---3 (9)
CTB---R
24V Power (J2)
24 VAC
J2---1
CTB---R
Econ Y2
DI, 24VAC
J1B---5 (11)
CTB---REHEAT---7
2---circ only
COMP1
DO, 24VAC
J1A---5 (5)
CTB---HEAT ---6
IFM
DO, 24VAC
J1B---4 (8)
CTB---REHEAT---2
COMP2
DO, 24VAC
J1B---4 (10)
CTB---REHEAT---8
LSV
DO, 24VAC
J2---2
FTP (BLK)
DSV1
DO, 24VAC
J2---3
DSV
NOT LSV
DO, 24VAC
J2---4
2---circ only
DSV2
DO, 24VAC
J2---5
2---circ only
LEGEND
COMP
--- Compressor
CTB
--- Control Terminal Board
. .
DI
--- Discrete Input (switch)
. . .
DO
--- Discrete Output (switch)
. . .
DSV
--- Discharge (gas) Solenoid Valve
. .
Econ
--- Economizer
.
FPT
--- Freeze Protection Thermostat
. .
IFM
--- Indoor (Supply) Fan motor
. .
LSV
--- Liquid Solenoid Valve
. .
LTLO
--- Low Temperature Lockout
.
REHEAT
---Connection Strip REHEAT (on CTB)
. .
Fig. 20 -- Inputs/Modes/Outputs Summary
Y1
Y2
W1
G
HUM/
LTLO
MODE
COMP1 COMP2
IFM
LSV1
LSV2
LSV
NOT
DSV1
DSV2
OFF
OFF
OFF
ON
OFF
Normal
Fan
OFF
OFF
ON=G
OFF
OFF
ON=R
OFF
OFF
ON
OFF
OFF
On
OFF
Normal
Cool1
ON=Y1
OFF
ON=G
OFF
OFF
ON=R
OFF
OFF
ON
ON
OFF
ON
OFF
Normal
Cool2
0N=Y2
ON
ON=G
OFF
OFF
ON=R
OFF
OFF
OFF
OFF
ON
X
OFF
Normal
Heat 1
OFF
OFF
ON=G
OFF
OFF
ON=R
OFF
OFF
OFF
OFF
OFF
ON
ON
Reheat
Dehumidify
ON
ON
ON=G
ON
ON
OFF
ON=R
ON=R
ON
OFF
OFF
ON
ON
Subcool
Cir1/
Reheat
Cir2
Cool1 and
Cool2/Subcool---
Dehumidify
ON
ON
ON=G
ON
ON
OFF
OFF
ON=R
ON
ON
OFF
ON
ON
Subcool
Cir1 and
Cir2
Cool1 and
Cool2/Subcool---
Dehumidify
ON
ON
ON=G
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
X
ON
Heat Over-
ride
Heat 1
OFF
OFF
ON=G
OFF
OFF
ON=R
OFF
OFF
OFF
OFF ON+
W2
X
ON
Heat Over-
ride
Heat 1 and 2
OFF
OFF
ON=G
OFF
OFF
ON=R
OFF
OFF
48H
C
Summary of Contents for 48HC D17 Series
Page 77: ...77 APPENDIX IV WIRING DIAGRAMS C12616 Fig 77 48HC D17 D28 Power Diagram 208 230 3 60 48HC...
Page 78: ...78 APPENDIX IV WIRING DIAGRAMS C12617 Fig 78 48HC D17 D28 Power Diagram 460 3 60 48HC...
Page 79: ...79 APPENDIX IV WIRING DIAGRAMS C12618 Fig 79 48HC D17 D28 Power Diagram 575 3 60 48HC...
Page 86: ...86 APPENDIX IV WIRING DIAGRAMS C13767 Fig 86 RTU OPEN Wiring Diagram 48HC...
Page 87: ...87 APPENDIX IV WIRING DIAGRAMS C13768 Fig 87 RTU OPEN Wiring Diagram with Humidi MiZer 48HC...