C -2
SUMMER/WINTER SWITCH WIRING - MODELS PV/BV
Energy-Saver Kit Wiring
Power Exhausted, Propeller and Blower Models - Single and
Three phase.
NOTE:
Energy saver accessory wiring diagram is to be used in
conjunction with unit wiring diagram.
Before proceeding with wiring the accessories described, make
sure the unit has been installed, vented, piped and wired
according to the Installation/Service Manual and Standard
Wiring Diagram furnished with the unit heater.
Installation
All wiring for this control must comply with the National Electric
Code and all local codes and ordinances.
Do not locate control on an outside wall or where it will be
affected by drafts or radiant heat. It does not require level
mounting.
1.
Remove front cover and one wiring access knockout from
control.
2.
Attach control to mounting surface with three screws
through back of case. Use a wooden shim for insulation if
surface is metal or masonry.
3.
Thread two wires through knockout and connect to R and W
control terminals. Leads must be long enough to extend to
unit heater junction box.
4.
Disconnect power to unit heater and open junction box on
unit heater. Select correct wiring diagram for unit heater
model (and size if applicable) and complete wiring of control
to unit.
Operational Check
1.
Set room thermostat to its lowest setting and restore
power supply to unit heater.
2.
Familiarize yourself with the adjustment knob of the
energy-saver control. In step 5 you will want to set it at 3-6
degrees (approximately) above the thermostat, but for
now, turning the dial clockwise to a lower setting simulates
a rise in temperature and only the unit heater fan should
come on. If the wiring is correct, the controlled equipment
will switch on and off as the temperature dial indicates the
approximate space temperature.
3.
If the controlled equipment does not start and stop as the
thermostat dial is turned, disconnect the power supply and
check the wiring and terminal connections.
4.
If the controlled equipment operates opposite to the
sequence desired, shut off the power and check for
reversed leads on the switch.
5.
After checkout, reset room thermostat to desired comfort
level. Set energy-saver control 3 to 6 degrees above room
thermostat (depending on mounting height, room
conditions, etc.) for ceiling air circulation.
Wiring Instructions
1.
Turn off power to unit heater.
2.
Connect “R” of Energy Saver to terminal 2 of time delay
relay.
3.
Connect “W” of Energy Saver to terminal 4 of time delay
relay.
From power supply
W
R
B
2
4
(on units with 1Ø power supply this
is fan motor or on units with 3Ø
power supply this is the starter coil)
TD Relay
TDC
To XFMR
CAUTION
Turn off all power and gas to unit before wiring. Failure to
wire this unit according to this wiring diagram may result in
injury to the installer or user. For deviations, contact factory.
!!
Summary of Contents for BV 100
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Page 14: ...8 6 440 2 WIRING DIAGRAMS MODELS PV BV Three Phase 5H73595C4 Rev A...
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