Twin City TCPE, WPB, WPD Propeller Wall Fans - IM-4800 - Manual (Page 5)

Twin City IM-4800 5
1. The TCPE panel fan is an axial exhauster that can
be mounted either vertically or horizontally. Figure 3
depicts a typical wall installation.
2. A typical frame is usually roughed in so that the
inside square dimension is approximately 1 ⁄
2
" to 3 ⁄
4
"
more than what the fan panel measures. If using the
optional wall collar the frame should be 3 ⁄
4
" to 1"
more than what the fan panel measures.
3. Place the unit into the frame with the wiring hole A in
the position that is most suitable for wire to enter the
unit. Fasten the unit to the frame through the holes
provided using lag bolts. If the electrical wire will be
coming from within the wall that the TCPE is being
mounted to, run the wire through hole A by entering
it from the orifice side of the panel. This should be
done before the panel is fastened to the frame to
reduce the need of disassembly. If the wiring is not
done during the installation the motor and guard can
be removed from the panel fan without having to
actually remove the panel itself. See Figure 3. Make
sure a strain relief is attached to the wires after the
wire is pulled into position.
CAUTION: Use copper conductors only.
CAUTION: Protect all wires from sharp edges. Do
not route wire through wiring hole without a strain
relief to protect it.
4. Connect the electrical wire to a disconnect switch
and then connect the wire to the motor (an optional
speed control may be installed in series with a 115V
ODP motor and disconnect switch). See Figure 1
on Page 4. The wiring diagram for the motor is on
a label attached to the motor. Main power wiring
should be sized for the amperage shown on the data
plate attached to the fan panel.
5. Disconnect switches (Optional) are not fused; there-
fore, the power leads must be protected at the point
of distribution in accordance with the unit data plate.
6. All TCPE motors are thermally protected. All units
must be electrically grounded in accordance with
local codes or in accordance with the NEC. A
grounding point is provided with all motors and will
be described on the wiring diagram that is attached
to the motor.
7. Supply voltage to the motor should not vary by more
than 10% of the value indicated on the unit data
plate. Phase unbalance must not exceed 2%.
WARNING: Failure of the unit due to improper line
voltage or excessive phase unbalance constitutes
product abuse. Severe damage to the unit’s electrical
components may occur.
8. Make sure unit is properly sealed around the frame
edges so that the outside elements cannot enter the
building.
PANEL
MOUNTING
FRAMING
BOLTS TO
REMOVE FAN
WIRING
HOLE ‘A’
ROT
ATION
AIRFLOW
Figure 3. Typical Installation
Figure 4. Fan Assembly Without a TCPE Wall Collar
M" (Min).
BACK OF
FAN TO
DAMPER
DAMPER
WEATHERHOOD
(EXTENDED FLANGE)
FAN
FIELD
FABRICATED
WALL COLLAR
Wall Opening Requirements
Wall opening size and the distance between propeller
and damper are two important dimensions for fan
installation. Fans mounted in or to the wall require a
different wall opening size than those mounted in collars.
Propeller-to-damper distance (M) is important to reduce
turbulence at the damper, which may lead to premature
damper failure, and to prevent the propeller blades from
hitting the actuator on motorized damper units.
TCPE
SIZE
PANEL
SQ.
WALL
OPENING
DAMPER
SIZE
'M' (MIN.)
8 13.25 13.75 10 x 10
14.0 10 15.25 15.75 12 x 12
12 18.25 18.75 15 x 15
14 21.25 21.75 18 x 18
14.0 16 23.25 23.75 20 x 20
18 25.25 25.75 22 x 22
20 27.25 27.75 24 x 24
14.0
24 30.25 30.75 27 x 27
Panel Installation (without collar) — TCPE