Specifications

9
Table 4 — Additional Analog Inputs
LEGEND
Table 5 — Main Base Board and Economizer Control Board Outputs
LEGEND
Table 6 — CCN Communication Bus Wiring
INPUT
PIN
CONNECTION
POINT
TERMINAL
CONNECTION
POINT
COMMENT
T55
Space Temperature (SPT)
J8 — 1,2 (MBB) TB3 — 7,8 Part No. = CEC0121448-01
T56
Space Temperature (SPT) and Space
Temperature Offset (SPTO)
J8 — 1,2,3 (MBB) TB3 — 7,8,9 Part No. = CEC0121503-01
Indoor Air Quality (IAQ)
J5 — 2,3 (ECB) TB5 — 2,3
Outdoor Air Quality (OAQ)
J5 — 3,5 (ECB) TB5 — 3,4
ECB —
Economizer Control Board
MBB —
Main Base Board
OUTPUT
PIN
CONNECTION
POINT
DESCRIPTION
C.A1
J10 — 11 (MBB) First compressor of Circuit A
C.B1
J10 — 9 (MBB) First compressor of Circuit B
C.C1
J10 — 6 (MBB) First compressor of Circuit C
IFC
J10 — 21 (MBB) Request for indoor fan. IGC controls the Indoor Fan Motor (48HG only)
Fan Power
J10 — 3 (MBB) Allows indoor fan to operate
OFC1
J10 — 19 (MBB) Controls outdoor fan motor 1
OFC2
J10 — 16 (MBB) Controls outdoor fan motor 3 and 6 (also 2 and 5 on size 028 units)
OFC3
J10 — 13 (MBB) Controls outdoor fan motor 4
W1
J10 — 27 (MBB) Request for first stage of heating. IGC controls heating (48HG only).
W2
J10 — 25 (MBB) Second stage of heating.
ALARM
J10 — 23 (MBB) TB4 — 7,8
Economizer Power
J8 — 18 (ECB) ECB can turn off the power to the actuator
Economizer Control Signal
J7 — 1, 3 (ECB) Belimo Communication Protocol
PE_1
J8 — 3 (ECB) Power Exhaust Motor No. 1
PE_2
J8 — 6 (ECB) Power Exhaust Motor No. 2
ECB —
Economizer Control Board
IFC —
Indoor-Fan Contactor
IGC —
Integrated Gas Controller
MBB —
Main Base Board
OFC —
Outdoor-Fan Contactor
MANUFACTURER
PART N O.
Regular Wiring Plenum Wiring
Alpha
1895 —
American
A21451 A48301
Belden
8205 884421
Columbia
D6451 —
Manhattan
M13402 M64430
Quabik
6130 —
Run Status
Service Test
Temperature
Pressures
Setpoints
Inputs
Outputs
Configuration
Time Clock
Operating Modes
Alarms
Alarm Status
ENTER
MODE
ESCAPE
Fig. 7 — Scrolling
Comfort
Link™ Display