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MODELS: TVA, TVE & TVS IOM Manual
INSTALLATION METHOD
Identification
The fan coil unit has a label pasted on the panel that shields the motor / blower.
The label shows either the floor and riser number or the room number.
The unit must be placed in the correct location in the building in accordance with the label.
Handling
1.
If the unit has risers attached, do not lift the unit using the riser pipes.
2.
Protect the fan coil from rain and snow. Be aware that there have been instances of units being
stood upright, unsecured on the edge of a building and being blown off the building during a
windstorm.
Installation of Units with Risers Attached
1.
A rectangular opening is made in the floor slab, usually sleeved before pouring the floor. Refer to
the catalog or submittals for sizes.
2.
Rotate the unit from the horizontal position to vertical so that the bottom end of the risers insert
into the expanded end of the risers on the unit below. 2” is allowed in the riser length for the
depth of the insertion. Shim the unit plumb.
3.
Before making the solder joint, ensure that the run outs from the supply and return risers are
centered in the slots in the cabinet. If this is not done there is considerable risk of distorting the run
out when the hot water riser expands causing the run out to contact the edge of the slot in the
sheet metal potentially causing failures or leaks. Also ensure that the condensate riser stub out is
at 90° to the cabinet so that the drain hose is not kinked.
4.
Riser anchoring is required for two purposes. The risers are anchored to the floor slab at one or
more points in the height of the building so that they do not slip down under gravity. The second
reason is to spread the expansion in opposite directions from the anchor point. Typically risers
will be anchored at the midpoint of the height of the building. If there are riser expansion loops
included in the risers inside the unit, the anchor point will be at the midpoint between two sets of
loops. For example in a 16 storey building there will be a loop on the hot water riser on floor 8
and anchors at floors 4 and 12. After anchoring, the risers are in effect attached to the building
structure so it does not matter if the plastic straps holding the risers to the unit break off after
installation.
Temspec does not advise on the location or method of anchoring as this is the
responsibility of the engineering company retained to design the riser system.
5.
Connect the risers by soldering (not brazing) using 95/5 solder. An additional cap of 50/50 solder
can be added for extra strength.
6.
If the unit has a riser loop inside, remove the support strap.
7.
Make good the riser insulation between floors.
8.
Fire stop the floor opening in accordance with code.
