Transcript
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White Bear Lake, MN 55110
(651) 426-2993
(800) 255-4208
FAX (651) 426-9547
www.tjernlund.com
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WARNINGS:
LEGEND:
Modulating Combustion Air System with VSUB 8/12/16/20 Blower, CPC-3 Controller
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1601 Ninth Street
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Tjernlund Products, Inc.
1. Improper wiring to the transducer will destroy the transducer. Use caution to ensure that the wiring to the transducer is correct before activating the CPC-3 controller.
LOW VOLTAGE / DC CONTROL WIRING 230 VAC SUPPLY / LOAD WIRING
2. Verify that the input power voltage matches the VFD's nameplate rating before applying power. Improper supply voltage to the VFD could damage the VFD.
VFD COMMUNICATIONS CABLE
and 230 volt VFD
FIGURE 8052021 11/18/04
PROJECT:_____________________________________________________________________
3. Verify that the blower (VSUB 8/12/16/20) is wired for the output voltage from the VFD. If not correct, severe damage to the blower and/or the VFD could result.
10' (3m) COMMUNICATIONS CABLE PROVIDED WITH EACH VFD
INDUCER TRANSDUCER BOX
WARNING: Improper wiring to this transducer will destroy the transducer. Use caution to ensure that the wiring to the transducer is correct before activating the CPC-3 Controller.
2
R B G
L
L
NC
NC
L3
L2/N
L1
GND GRAY
RED
WHT/BRN
YELLOW
MC M1 M2
VFD CONTROL BOX
S1 S2 SC
N/O
S3 DD+
COMBUSTION AIR MOTOR ROTATION SELECTOR
ORANGE BLUE GRN/YEL YELLOW
2. Use caulking to seal the electrical box cover to the electrical box, and to seal the conduit holes to hole plugs.
WHT/RED RED WHT/BRN
3. If required, non-fused disconnects are to be supplied by the installer.
GRAY
F1
S2
S1
MGND
M3
F2
5. The FFP-1 will disable the combustion air blower when excessively hot or cold room air is detected. Refer to the FFP-1 installation instructions for details.
Wiring is to be in dedicated metal conduit. Max. length: 300' (91m) @ 230 VAC
ALARM
COMBUSTION AIR
B
R
G
B
R
G
SENSORS
2
P2 P1 G R
S1 S2
INDUCER
AUX. SENSOR
B D+ D- S3 SC S2 S1 M2 M1 MC MB
CPC-3 CONTROLLER CIRCUIT BOARD
REMOTE ALARM PORT
VSUB BLOWER
1
4 x 4 WEATHERPROOF BOX AND WHIP
3 MICROCONTROLLERS
2 C O S2 S1
EXP-4E SIGNAL PORTS
MOTOR LIMIT
BLUE
AUX. CONTROL
EXP3
2
ORANGE
1
BOARD ALARM
EXP2
MOTOR
RED
CONTROLLER DISPLAY
EXP1
3
4
2
RESET SWITCH
KEYPAD CONNECTORS
1. If the provided 10-foot, 10-wire VFD control cable is not long enough to meet the application needs, use caution to ensure that the connections from the VFD to the CPC-3 controller are correctly located. MB to MB, MC to MC, etc. In addition, reference the Wire Length Table.
BLACK VIOLET
4. This blower is shipped from the factory wired for 460 VAC. Reconfigure the motor wiring at the motor for 230 VAC. See the Motor Label for details.
CPC-3
TJERNLUND PRODUCTS, INC.
NO C NC
1
B D+ D- S3 SC S2 S1 M2 M1 MC MB
COMBUSTION AIR TERMINAL STRIP
3
M2
M1
ENLARGED VIEW
INDUCER TERMINAL STRIP
INDUCER MOTOR ROTATION SELECTOR
WHT/RED
110' (34m)
BLUE
165' (50m)
22 AWG
GRN/YEL
20 AWG
ORANGE
220' (67m)
BLACK
18 AWG
1
VIOLET
390' (119m)
MB
COMMON
P2 P1 G R
16 AWG
NOTES:
DIGITAL I/O
600' (183m)
3. Do not run the VFD's input power and output power wiring in the same conduit. Undesired VFD operation could result.
S1 S2 S1 S2
14 AWG
The low voltage VFD communication wiring is to be routed in metal conduit. If longer wiring is desired, see the wire length table at left for maximum wire lengths.
2. Route transducer wiring in metal conduit or use Belden Shield Cable #9939 or equivalent. Make sure the transducer wiring does not contain or cross line voltage wiring or undesired transducer performance may result.
"2" means "230 VAC" "C" means "Closed Loop"
COMBUSTION AIR MANUAL MODE PROVING SWITCH
B D+ D- S3 SC S2 S1 M2 M1MC MB
900' (274m)
1. All wiring must be in metal conduit (best) or shielded cable.
TJERNLUND DRIVE MODEL VFD- _ _ _ _ _ _ _ 2C3
P2 P1 G R
Max. Distance
12 AWG
CAUTIONS:
"3" means "CPC-3 Control"
Route transducer wiring in metal conduit or use Belden Shield Cable #9939 or equivalent. Make sure the transducer wiring does not contain or cross line voltage wiring or undesired transducer performance may result.
Wire Gage
4. When the system is completely installed, perform the safety interlock and operational test as outlined in the installation manuals. Failure to do these tests could result in an unsafe and/or incorrectly operating system.
1 208-230 VAC 1Ø / 60 HZ ADD FOR 208-230 VAC 3Ø
1
GREEN AUXILIARY DEVICE PORT
BLACK GROUND
BLACK
ANALOG AND DIGITAL POWER SUPPLIES
MOTOR WINDINGS
BLACK RED
ON
OFF MAIN AC POWER TERMINAL
L
N
#1
AC POWER
MAIN L
N
L
N
L
N
EXP4-E POWER TERMINALS
A
B
1
2
3
4
APPLIANCE 1 PORT
#2 A
B
1
2
3
4
APPLIANCE 2 PORT
#3 A
B
1
2
3
4
APPLIANCE 3 PORT
#4 A
B
1
2
3
4
APPLIANCE 4 PORT
MOTOR HEATER TSTAT
CALL RETURN JUMPERS
HEAT LIMIT
ARCTIC-DUTY MOTOR HEATER (15 WATTS FOR VSUB8,12,16 & 30 WATTS FOR VSUB20)
FREEZE LIMIT
FFP-1 REFER TO FFP-1 INSTALLATION INSTRUCTIONS FOR DETAILS
INCLUDED CABLE
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