3
General Installation
CAUTION:
Sheet metal parts, screws, clips and similar items
inherently have sharp edges, and it is necessary that the
installer and service personnel exercise caution.
The installation of this equipment shall be in accordance with the
regulations of authorities having jurisdiction and all applicable codes.
This equipment is to be installed by an experienced installation company
and fully trained personnel.
The mechanical installation of the exhaust ventilator consists of making
final connections between the unit and building services, duct
connections.
When motors and drive packs are shipped in separate cartons from the
fan, check the carton labels to make sure the motor and drive pack you
received are the correct combination for the fan being purchased.
Refer
to the fan components list included in these instructions.
Motor and Drive Pack Installation
Before mounting the motor to the fan motor/bearing support plate check
the nameplate voltage of the motor to insure that it is compatible with the
supply voltage. If the motor is a dual or tri voltage make sure the
connections inside the motor are properly wired to match the supply
voltage. Refer to the wiring schematic on the motor nameplate or inside
the junction box. Record the motor that was installed and the voltage that
the fan is wired for on the fan nameplate by checking the appropriate
boxes.
Mount the motor to the fan in a slot pattern on the motor/bearing support
plate that matches the motor frame footprint. The motor is mounted on
the same side of the motor/bearing support plate as the bearings and fan
shaft. The motor is usually mounted to the right side of the fan shaft. Use
the hardware provided which is located in the motor compartment of the
fan. Loosely snug the bolts at this time. Sizes 15, 16 and 18 have a
spacer bolt pack included. The junction box on certain motors will hit the
shaft. Use the spacers to raise the motor junction box above the shaft.
Install the adjustable sheave onto the motor shaft and the fixed sheave
onto the fan shaft. Align the sheaves as shown on p.5 of these
instructions and torque the set screws from 70 to 87 in-lbs. Install the
V-belt around the sheaves and slide the motor in the slots provided to
tension the belt (see p.4 for procedure). Once the belt is properly
tensioned and the alignment is correct tighten down the motor mounting
bolts. See p.11 for the wiring diagrams and motor location sketch.
Electrical Connection
For Wiring diagrams please refer to p.9
1. Connect supply wiring to the disconnect switch (if supplied). Check the
wiring diagrams on the motor for connections.
2. The motor is factory set at the voltage marked on the fan nameplate.
Check the line voltage with the nameplate voltage and wiring
diagrams.
3. The main power wiring should be sized for the amperage shown on
the nameplate. Size wires in accordance with the ampacity
tables in Article 310 of the National Electrical Code. If long
wires are required, it may be necessary to increase wire size
to prevent excessive voltage drop. Wires should be sized for a max of
3% voltage drop.
CAUTION:
Use copper conductors only.
CAUTION:
Protect wiring from sharp edges. Leave some slack in the line
to prevent damage.
4. Disconnect switches (if supplied) are not fused. The power leads must
be protected at the point of distribution in accordance with the fan
nameplate.
5. On fans without a thermal protector integral to the motor (refer to
unit or motor nameplate to determine if protector is present) a
separate overload device is required. Refer to Sections 430-32 of the
N.E.C. for sizing.
6. All units must be electrically grounded in accordance with local codes
or, in the absence of local codes, with the latest edition of the
National Electrical Code (ANSI/NFPA 70). A ground lug is provided as
standard in the unit terminal box. Size grounding conductor in
accordance with Table 250-95 of the National Electrical Code.
DO NOT use the ground lug for connecting a neutral conductor.
7. Supply voltage to the power ventilator should not vary by
more than 10% of the value indicated on the unit nameplate.
Phase unbalance must not exceed 2%.
WARNING:
Failure of motor due to operation on improper line voltage or
with excessive phase unbalance constitutes product abuse and may
cause severe damage to the unit’s electrical components.
INSTALLATION AND MAINTENANCE INFORMATION
Receiving, Inspection & Unpacking
When the equipment is received all items should be carefully checked
against the bill of lading to be sure all crates and cartons have been
received. Before accepting delivery, carefully inspect each carton or
crate for visible shipping damage. If any damage is noticed, the carrier
should make the proper notation on the delivery receipt acknowledging
the damage. Make notations of all damage on all copies of the bill of
lading and have all copies countersigned by the delivering carrier. The
carrier should also fill out a Carrier Inspection Report. File claim for
damage with the carrier. Physical damage to the unit after acceptance is
not the responsibility of Fantech.
Unpack each carton or crate and verify that all required parts and proper
quantities of each item have been received. Refer to drawings for part
descriptions. Report shortages or missing items to your local
representative to arrange for replacement parts.
Due to availability of carriers and truck space, it is not possible to
guarantee that all items will be shipped together. Verification of
shipments must be limited to only those items on the bill of lading.
The unit nameplate must be checked to make sure the voltage agrees
with the power supply available.
