Tjernlund CPC-3 Constant Pressure Controller Startup Manual 8504125 - Manual (Page 8)

7
LOW VOLTAGE TD-SERIES TRANSDUCER & PSA-1 MANUAL MODE FAN PROVER WIRING TO CPC-3
MAXIMUM WIRE LENGTH TABLE WARNING:
Failure to wire the Transducer
Make sure to wire G - G, R - R
correctly will destroy the
and B - B before activating the
THE INDUCER
MANUAL MODE
PRESSURE SWITCH
PRESSURE TRANSDUCER
(PSA-1)
THE INDUCER
Transducer!
the CPC-3.
TD-___
900' (274m) 12 AWG
FIGURE 8055011 9/3/04
D+ D- S3S CS2 S1M2 M1MC MB B R G B R G S1S2
CPC-3 CONTROL
SENSORS AUX. SENSO R INDUCE R
2 1
B R G P1 P2
SELECTOR
INDUCER
MOTOR
ROTATION
NOT USED -
FOR FUTURE
DEVELOPMENT
NOT USED -
FOR FUTURE DEVELOPMENT
THE INDUCER
TERMINAL STRIP
TOP LEFT CORNER
CPC-3 CONTROL
BOARD
RS232
COM.
PORT
Wire Gage Max. Distance
600' (183m) 14 AWG
390' (119m)
220' (67m) 16 AWG
18 AWG
22 AWG
20 AWG
110' (34m)
165' (50m)
CAUTION:
These wires must be
metal conduit.
routed in their own
R B G
NOTE: The diagram below is suitable for both the Inducer or Combustion Air side of the the CPC-3 board. While the software that
runs draft or combustion air differs, the wiring to the Transducer and PSA-1 manual mode fan prover is identical. The following infor-
mation is applicable to both the CPC-3 Inducer and Combustion Air terminal strips.
REMOTE ALARM / AUXILIARY DEVICE WIRING
FOR FUTURE
SYSTEM USE
LOAD
SYSTEM O.K.
SIGNAL POWER IN
REMOTE ALARM
TERMINAL BLOCK
AUXILIARY
LOAD
AUXILIARY DEVICE
POWER IN
5 VDC SIGNAL
ALARM AND AUXILIARY
RELAY SPECIFICATIONS:
40 AMPS @ 240 VAC / 30 VDC
30 AMPS @ 277 VAC
2 HP @ 250 VAC
1 HP @ 125 VAC
ALARM RELAY
APPLIANCE 4
INTERLOCK BLOCK
USER-PROVIDED
SWITCH
TOP RIGHT CORNER
CPC-3 CONTROL BOARD
FOR FUTURE
SYSTEM USE
O
CS
2
S
1
1
2
1
2
N
C
C
NO
3 4
CALL
RETURN
JUMPERS
P2 S2 S1 S2 S1
DIG ITA L I/O
TJERNLUND
PRODUCTS,
CPC-3
CONTROL
AUX.
ALARM
1 2 A B 4
#3 #4
FOR FUTURE
SYSTEM USE
SYSTEM FAULTED
LOAD
AUXILIARY SENSING
CIRCUIT
AUXILIARY DEVICE
TERMINAL BLOCK
NOTE:
INDUCER OR
COMBUSTION AIR
MOTOR ROTATION
SELECTOR