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120
Table 117 — VAV Control Board (ECB2) Inputs and Outputs
POINT
NAME
POINT DESCRIPTION
I/O POINT
NAME
PLUG AND PIN
REFERENCE
SIGNAL PIN(S)
PORT STATE
INPUTS
DI1
J4, 1-2
2
24VAC = 1, 0VAC = 0
DI2
J4, 3-4
4
24VAC = 1, 0VAC = 0
BP
Building static pressure
AN1
J5, 1-3
1=24VDC, 2=0-20mA in, 3=GND
0-20mA
SP
Supply Duct static pressure
AN2
J5, 4-6
4=24VDC, 5=0-20mA in, 6=GND
0-20mA
OUTPUTS
SFAN_VFD
Supply Fan Inverter speed
AO1
J9, 1-2
1=0-20mA, 2=GND
0-20mA OUT
PP/MP
J7, 1-3
1=PP/MP Data, 2=24VAC, 3=GND
Belimo PP/MP Protocol
RLY1
J8, 1-3
1 = 2 = RLY1A, 3 = RLY1B
1 = Closes RLY1A/RLY1B
RLY 2
J8, 4-6
4 =5 = RLY2A, 6 = RLY2B
1 = Closes RLY2A/RLY2B
RLY 3
J8, 7-9
7 = 8 = RLY3A, 9 = RLY3B
1 = Closes RLY3A/RLY3B
MLV
Minimum load valve
RLY 6
J8, 16-18
16 = 17 = RLY6A, 18 = RLY6B
1 = Closes RLY6A/RLY6B
ADDRESS DIP
SWITCHES ALL ON
RED LED-
STATUS
GREEN LED-
LEN (LOCAL EQUIPMENT NETWORK)
J2
J1
PWR
J4
LEN
LEN
J3
4-POSITION
DIP SWITCH
PWR
1
13
10
7
XDCR/THERM
4
1
J6
J5
7
4
1
3
1
3
1
J8
0-20mA OUT
J7
THERM
XDCR/THERM
1
4
13
10
7
RELA
YS
J9
CEBD430427 HK50AA032 CEPL130427
Fig. 28 — Staged Gas Heat Control Board (SCB)
A48-7707
Summary of Contents for WEATHERMAKER 48/50AJ
Page 103: ...103 Fig 15 Typical Main Control Box Wiring Schematic 48 50AJ AK AW AY Units cont a48 8355 ...
Page 104: ...104 Fig 16 Typical Main Control Box Wiring Schematic 48 50A2 A3 A4 A5 Units a48 8355 ...
Page 105: ...105 TO NEXT PAGE Fig 17 Typical Auxiliary Control Box Wiring Schematic A48 7294 ...
Page 106: ...106 Fig 17 Typical Auxiliary Control Box Wiring Schematic cont a48 8356 ...
Page 107: ...107 Fig 18 Typical 2 Stage Gas Heat Wiring Schematic Size 051 and 060 Units Shown a48 8357 ...
Page 113: ...113 Fig 22 Typical Power Schematic 48 50A2 A3 A4 A5060 Unit Shown ...
Page 114: ...114 SW1 SW2 OR DEHUMIDIFY SWITCH Fig 23 Typical Controls Option Wiring Schematic a48 8361 ...
Page 115: ...115 Fig 24 Typical Small Chassis Component Location Size 020 035 Units a48 8362 ...
Page 116: ...116 Fig 25 Typical Large Chassis Component Locations Size 036 060 Units A48 7302 ...
Page 169: ...169 APPENDIX C VFD INFORMATION cont Fig F Internal Enclosure Fan Replacement A48 7716 ...