Specifications

21
Table 4 — ECB2 Channel Assignments
POINT NAME POINT DESCRIPTION I/O TYPE I/O POINT NAME
CONNECTOR
PIN NO.
INPUTS
—NotUsed DI1 J4, 1-2
—NotUsed DI2 J4, 3-4
BLDG Building Static Pressure 4-20 mA AN1 J5, 1-3
DUCT Supply Duct Static Pressure 4-20 mA AN2 J5, 4-6
OUTPUTS
S.VFD Supply Fan Inverter Speed 4-20 mA AO1 J9, 1-2
—NotUsed PP/MP J7, 1-3
—NotUsed RLY1 J8, 1-3
—NotUsed RLY 2 J8, 4-6
—NotUsed RLY 3 J8, 7-9
MLV Minimum Load Valve (Hot Gas Bypass) Relay RLY 6 J8, 16-18
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
THERMXDCR/THERM
1
4
13
10
7
RELAYS
J9
Fig. 12 — Staged Gas Heat Control Board (SCB)