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MODELS: TVA, TVE & TVS IOM Manual
Drain Pan Instruction
•
Please check the drain pan for proper drainage as part of commissioning.
•
The unit should be checked to ensure the drain pan is level, free of debris, and the drain line properly
connected to the riser stub-out
Flushing and Testing
1.
The fan coil is normally equipped with ball type shut off valves. The unit is shipped with the ball
valves open to the coil.
2.
After checking mechanical fittings inside the unit for tightness, it is recommended that the units on
each riser stack are pressure tested using compressed air or nitrogen.
3.
Close the ball valves and flush the riser system.
4.
Open the supply side ball valve and bleed air from the coils. The coil has a manual air vent for
this purpose. The top of each riser should also have an air vent (not provided by the factory).
5.
Test the units and risers hydrostatically. Open the return side ball valve after testing.
6.
Check that the strainer mesh is not choked, if there are strainers included with the unit.
Drywall Installation
The fan coil model series “TV” has a cabinet which is designed to be furred-in. Fan coils which
are exposed in the room (model “TF”) or free standing in a closet (model series “TC”) have a different
style of cabinet. For the “TV” series the drywall can be directly attached to the cabinet or the unit can be
framed.
1.
Direct Application
– The return air panel which has quarter turn fasteners must be used. It
is designed to fit the ½” drywall flange around the return air / access opening on the unit.
Use drywall screws no longer than 1 ¼” and follow the instructions on the page in the
submittals which shows where the screws can be located to avoid damaging internal
components. When using the panel which has quarter turn fasteners the drywall must be
attached to the front. The sides and back can be framed.
2.
Framing –
Frame the unit using metal studs
.
The flange around the return air/access
opening is 2” deep. The type of return air panel which has a hinged filter door in its upper
half is used with this type of installation. It is preferable that the stud does not touch the fan
coil cabinet so that any slight vibration which may exist is not transferred to the stud.
Before installing the thermostat and grilles, the walls must be painted. Instruct the painter not to
spray over the labels on the unit. After installation, dust must be vacuumed from the coil surfaces,
the drain pan, the motor windings and the cabinet insulation.
Temspec does not recommend the use of a fan coil unit during construction/drywall installation as a space
heater or air conditioner. Motor exposure to drywall dust can reduce motor life and leads to premature failure
Ducted Units
Remove the supply air opening knock-out in the top panel of the fan coil. Cut out the cabinet insulation
from the opening and butter the cut edge if it is glass fiber insulation. Attach the supply air duct.
Note that supply air duct flanges are not provided by the factory.
Electrical Connection
The unit has a single point connection at the junction box inside the unit. It might also have a disconnect
switch and/or a fuse. All electrical wiring must be in accordance with the current version of the
national and local codes. A qualified electrician must carry out the work. The junction box is
located behind the fan/motor shield. Electrical power to the unit should be disconnected by opening
