Tjernlund CPC-3 Constant Pressure Controller Startup Manual Manual de usuario descargar pdf (Pagina 6)

MBMCM1M2S1S2SCS3D-D+BRGP1P2S2S1S2S1 P2 P1 G R B D+ D- S3 SC S2 S1 M2 M1 MC MBB R G B R G S1 S2

OCS2S1 12 12 NCCNO

NLLN LN LN AB AB AB AB 21

124

POWER TERMINAL

MAIN AC EXP-4E

POWER TERMINALS

HEATER 1 HEATER 2 HEATER 3 HEATER 4

INDUCER PORT COMBUSTION AIR PORT

BOARD

ALARM

POWER

DIGITAL

ANALOG AND

SUPPLIES

KEYPAD

CONNECTORS

CALL

RETURN

JUMPERS

PORT

DEVICE

AUXILIARY

PORT

ALARM

REMOTE

PORTS

SIGNAL

EXP-4E

MICROCONTROLLERS

SWITCH

RESET

SELECTOR

INDUCER

MOTOR

ROTATION ROTATION

MOTOR

COMBUSTION AIR

SELECTOR

CONTROLLER DISPLAY

DRY1

A24V

A115V

B115V

B24V

DRY2

C115V

C24V

DRY3

D115V

D24V

DRY4

D1 D1 D1 D1

H1 G1

FUTURE USE FUTURE USE

FUTURE

USE

FUTURE

FIGURE 8081005

CPC-3 BOARD CALLOUTS

A) CPC-3 Main Power Switch

B) Power Supply Input Terminals: Accepts either 115 or 230 VAC, 50/60 Hz. 230V power can be suppied from VFD L & L Terminals.

C) Power Supply Output Terminals: Supply power to accessory EXP-4E Expansion boards.

C1) EXP-4E Expansion Modules: Communications connections from EXP-4E Expansion boards.

D) Heater Interlock Terminal Blocks (Four):

Positions A & B are for dry contact actuation, with A outputting 5 VDC and B needing 5 VDC to activate the CPC-3. Positions 1 &

2 require either 24 or 115 VAC from a heater control circuit to activate the CPC-3. A factory installed call return jumper wire above

each terminal block routes the voltage connected from position 1 to position 3. When the CPC-3 safety circuit is made it switches

position 3 to position 4, where the intercepted heater control circuit is routed back to the heater. Positions 3 & 4 are used indepen-

dent of positions 1 & 2. If the A & B dry contacts are used to activate the CPC-3 (Call return jumper wire must be removed).

D1) IMPORTANT: Each six position terminal block includes a RED jumper tab to select the heater interlock voltage that is

connected heater terminal block. Place RED jumper tab in Dry for positions A & B, 24V or 115V for positions 1 & 2 depening

upon heater interlock voltage)

E) Auxiliary Device Terminals:

Used to activate a motorized damper/louver in series with the inducer/blower activation by switching power to device through ter-

minal C & O. Position S1 outputs 5 VDC to be switched through a damper end switch and returned to position S2. This incorpor-

ates the end switch closure into the overall CPC-3 safety circuit. Positions S1 & S2 may also be used to react to the contact clos-

ure of a carbon monoxide alarm. The functions of C & O and S1 & S2 are independently activated through the Auxiliary Device key.

F) Remote Alarm Terminals:

Used to activate a remote alarm through either normally open or normally closed contacts. A power source is routed to the C posi-

tion and returned out of either the N/C or N/O positions if an alarm condition exists.

G & H) Draft and Combustion Air Terminals:

The CPC-3 can independently control mechanical draft and combustion air inducers/blowers. While the software that runs

these functions differs, the communications to the VFD's that control the inducer/blower is identical. The following information

is applicable to both the Inducer and Combustion Air terminal strips.

1 2 3 4 5 6 7 8 9 10 11 ... 17 18

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Tjernlund CPC-3 Constant Pressure Controller Startup Manual Manual de usuario Pagina 6

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