Tjernlund RT1500 Rooftop Draft Inducer 8504160 Rev 12/09 - Manuel (Page 9)

8
WIRING
INSTALLING ELECTRICAL WHIP
Remove the (2) 8-32 nuts holding coverplate and gasket on the electrical access of the Inducer.
Pull the wires out of the Inducer and wire nut them to the electrical leads from the whip referenc-
ing appropriate diagram below. Carefully stuff the wired connections back into the Inducer and
secure coverplate and gasket to Inducer housing using the nuts removed from above. Firmly
tighten until gasket compresses, (See Diagram Q).
Secure box on opposite end of whip to power supply conduit and wire in accordance to the
diagram appropriate for installation. Place provided gasket between cover and box firmly tighten.
All wiring from the Rooftop Inducer to the appliance must be in compliance with local codes or in their absence, the National Electric
Code (NFPA 70).
All wiring from the Rooftop Inducer to the appliance must be appropriate class 1 wiring as follows: Installed in rigid metal conduit,
intermediate metal conduit, rigid non-metallic conduit, electrical metallic tubing, Type MI Cable or be otherwise suitably protected from
physical damage.
COOLING FAN
MOTOR
CAPACITOR
THERMOSTAT
MOTOR
N
GND
L1
BLUE
BLACK
BLACK
WHITE
INDUCER
THERMOSTAT
BLUE
BLACK
BLUE WHITE
RED
WHITE
WHITE BLACK
WHITE
RED
GREEN / BARE COPPER
OPTIONS
CONTROL
BELOW
TJERNLUND
SEE
BROWN
BROWN
120 VAC
5 VDC BOARD-GENERATED POWER.
120 VAC
LEGEND
DO NOT SUPPLY POWER!
8050020 01/06/10
CONTROL OPTION 1 CONTROL OPTION 2
MANUAL ON / OFF MANUAL SPEED CONTROL
(BLACK)
(WHITE)
(GREEN / BARE COPPER)
L1
N
SWITCH IS PROVIDED BY OTHERS, MUST BE
RATED FOR 10 AMPS MINIMUM AT 120 VAC. NOTE:
(BLACK)
(WHITE)
(GREEN / BARE COPPER)
TO INDUCER GROUND SCREW
TO INDUCER WHITE LEAD
TO INDUCER BLACK LEAD
TO INDUCER RED LEAD L1
N
USE TJERNLUND ROOFTOP SERIES SPEED CONTROLS ONLY.
WARRANTY IS VOIDED IF A DIFFERENT SPEED CONTROL IS USED. NOTE:
OFF
TO INDUCER GROUND SCREW
TO INDUCER WHITE LEAD
TO INDUCER BLACK LEAD
TO INDUCER RED LEAD
ON
LOW
ON
HIGH 120 VAC 120 VAC
SPEED
CONTROL
ROOFTOP INDUCER FACTORY CONNECTION DIAGRAM
ROOFTOP INDUCER CONTROL OPTIONS
DIAGRAM Q
CONTROL OPTION 1
MANUAL ON/OFF
CONTROL OPTION 2
MANUAL SPEED CONTROL (RT750H / RT1500H)