Series 500 Ceiling Mounted
Fan Forced Heater
Electrical Accessories
Installation Instructions
SAVE THESE INSTRUCTIONS
INSTALLATION OF POWER DISCONNECT SWITCH (DS)
Surface Mount and Recessed Mount Except T-Bar
Mounting:
1. Install disconnect switch in the surface mounting plate or
recess box as shown in the heater installation instructions
and Figure 1 with the terminals marked L1, L2 and L3 toward
the knockout.
2. Remove and discard the wire from the terminal marked T3 on
the disconnect switch if the power supply is single phase.
3. Install field wiring to the disconnect switch terminals marked
L1 and L2 (and L3 for three phase).
4. Install heater as shown in the heater installation instructions.
5. Remove wiring cover from front of heater and wire T1 and T2
(and T3 for three phase) from the disconnect switch to the
power block on the heater. (See Wiring Diagram, Figure 3).
6. Turn disconnect switch clockwise to energize circuit.
T-Bar Mounting:
1. Install disconnect switch in the recess box as shown in the
heater installation instructions and Figure 1 with the terminals
marked L1, L2, and L3 toward the knockout.
2. Remove and discard the wire from the terminal marked T3 on
the disconnect switch if the power supply is single phase.
CAT. NO.
ACCESSORY
ELECTRICAL RATING
REMARKS
T
Single Pole Internal Thermostat;
25A; 120-277 VAC Res.
-
Temp Range: 40°F - 95°F
720 Pilot Duty
24R
Control Relay; 24 VAC Holding Coil
Inductive Amps: 7.0 @ 120 - 277 VAC.
Time Delay: 45 - 60 sec.;
Resistive Amps: 25 @ 120 - 277 VAC.
to close when energized.
R12
Control Relay; 120 VAC Holding Coil
Inductive Amps: 7.0 @ 120 - 277 VAC.
Time Delay: 45 - 60 sec.;
Resistive Amps: 25 @ 120 - 277 VAC.
to close when energized.
DS
Supply Power Disconnect Switch
30A (MAX Load 24A) 208 - 600 VAC, 3 Pole, 10
-
TR4
Transformer and Relay
Transformer: 208/240 VAC primary; 24 VAC
Time Delay: 45 - 60 sec.;
secondary. - Relay: 24 VAC Holding Coil
to close when energized.
TR7
Transformer and Relay
Transformer: 277 VAC primary; 24 VAC
Time Delay: 45 - 60 sec.;
secondary. - Relay: 24 VAC Holding Coil
to close when energized.
WARNING
!
THIS INSTRUCTION SHEET CONTAINS VITAL INFORMATION
FOR THE PROPER INSTALLATION, USE AND EFFICIENT
OPERATION OF THE HEATER. CAREFULLY READ THE MAN-
UAL BEFORE INSTALLATION, OPERATION, OR CLEANING
OF THE HEATER. FAILURE TO ADHERE TO THE INSTRUC-
TIONS COULD RESULT IN FIRE, ELECTRIC SHOCK, DEATH,
SERIOUS PERSONAL INJURY OR PROPERTY DAMAGE.
WARNING
!
MAKE SURE ALL POWER IS DISCONNECTED AT SUPPLY
BEFORE INSTALLING.
Figure 1
40485
03/15
5200-2070-004
