Bulletin 30-034.009
Copyright © 2022 Unico Inc.
Page 4
MOUNTING
Mounting Instructions.
Attach the electric furnace to
the unit using the square adapter collar supplied with
the electric heater. The electric furnace may be mounted
with horizontal or vertical airflow.
The adapter collar should be flush with the edge of the
blower cabinet (bottom for the M-series, rear for the V-
series, and top for the U-series). Center the collar
horizontally over the blower opening. Use the #10 x
3/8” type AB sheet metal screws located inside the
bulletin packet shipped with the blower module to
attach the adapter collar to the air handler.
If the blower has a single-speed motor, you must install
the
restrictor
plate.
DO
NOT
USE
THE
RESTRICTOR PLATE WITH VARIABLE SPEED
MOTORS.
Slide the restrictor plate behind the adapter
collar to the fully open position (see Figure 2).
IL00385c.cvx
Restrictor
Plate
Gasket
Furnace Adaptor Kit
Blower
Module
Electric
Furnace
Blower
Module
Adaptor
Collar
Mount flush with
bottom of blower
Center collar over
blower opening
Restrictor
Plate
M-Series Blower
END VIEW
Vertical Up-Flow
Configuration
Horizontal Flow
Configuration
Figure 2. Modular Unit Furnace Installation
Insert the furnace into the furnace adapter and secure it
using the (4) #8 x 3/4” modified Phillips head self-
drilling screws shipped with the electric furnace. If
using a restrictor plate, adjust the plate to the proper
airflow (refer to
Bulletin 30-020)
then use #10 x 3/8”
type AB sheet metal screws located inside the bulletin
packet shipped with the blower module to secure the
restrictor plate in place.
For vertical installations, mount the electrical furnace
control box in any position. The circuit breaker can be
repositioned for vertical installations, if needed, so that
the switch is in the down position when turned off.
For horizontal air flow applications, be sure the electric
furnace is fully supported using the supplied strap. If the
furnace is not supported from underneath the unit, use a
hanging strap to support the furnace by attaching one
side to the top of the air handler and the other to the end
of the furnace as shown in figure 3 and 4. Mount the
furnace with
the control box on either side.
Do not
install the furnace with the control box on top or
bottom.
Support the furnace on the rafters, floor, or platform
with the air handler. If using a platform, make it large
enough to support the entire furnace and air handler.
Rest the platform on the floor or hang it with chains or
cables. Refer to Bulletin 30-20 for mounting
instructions.
CAUTION
DO NOT HANG UNIT DIRECTLY FROM
HOUSING TO PREVENT DAMAGE TO
THE ELECTRICAL ELEMENTS.
Blower
Module
Furnace
Adaptor
IL00380(Rev A).cvx
Electric
Furnace
Control Box
(Mount on
either side)
Restrictor
Plate
Hanging
Strap
Figure 3. Hanging Strap Placement
Electric Furnace
Mounting Screws
U1218 END VIEW
U1218
Gasket
Furnace Adaptor
IL00386d.cvx
Figure 4. U1218 Electric Furnace Mounting
