WaterFurnace 7 Series - Manual (Page 6)

6
7 SERIES 50Hz 700A11 INSTALLATION MANUAL
CAUTION: Do not use rods smaller than 9.5mm
diameter since they may not be strong enough
to support the unit. The rods must be securely
anchored to the ceiling.
General Installation Information cont.
Insulate supply
plenum and use
at least one 90
elbow to
reduce noise
Electrical
Disconnect
Flexible Duct
Collar
Threaded Rods
Line Voltage Ball V
alves
Hose
Kits
To Line
Power
To
Thermostat
Hanging
Brackets
(Included)
Building Water Loop
O
Figure 2: Horizontal Unit Mounting
Installing Horizontal Units
Remove and discard the compressor hold down shipping
bolt located at the front of the compressor mounting
bracket prior to setting the unit in place. Horizontal units
are available with side or end discharge. Horizontal units
are normally suspended from a ceiling by four or six 9.5mm
diameter threaded rods. The rods are usually attached to
the unit by hanger bracket kits furnished with each unit.
Lay out the threaded rods per the dimensions in Figure
3. Assemble the hangers to the unit as shown. Securely
tighten the brackets to the unit using the weld nuts located
on the underside of the bottom panel. When attaching the
hanger rods to the bracket, a double nut is required since
vibration could loosen a single nut. To allow filter access,
one bracket on the filter side should be installed 180° from
the position shown in Figure 3. The unit should be pitched
approximately 6.35mm towards the drain in both directions
to facilitate the removal of condensate. Use only the bolts
provided in the kit to attach hanger brackets. The use of
longer bolts could damage internal parts.
Some residential applications require the installation of
horizontal units on an attic floor. In this case, the unit
should be set in a full size secondary drain pan on top of a
vibration absorbing pad. The secondary drain pan prevents
possible condensate overflow or water leakage damage to
the ceiling. The secondary drain pan is usually placed on a
plywood base isolated from the ceiling joists by additional
layers of vibration absorbing material.
SPECIAL NOTE: The VS drive is limited to a maximum of
51.7°C ambient temperature. For this reason the 7 Series
is not approved for attic installations. The compressor
compartment temperature is also monitored by the
Aurora. This ‘compressor ambient’ temperature is available
on the AID Tool for reading. The control will de-rate the
compressor when ambient air is above 51.7°C. Installing this
product in an attic could result in loss of warranty.
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Hanger Dimensions
Model
Hanger Kit Part
Number
Unit Hanger Dimensions
A B C D
009 cm. 99S500A03 196.6 70.6 61.2 74.4
012 cm. 99S500A03 196.6 70.6 61.2 74.4
015 cm. 99S500A03 209.3 70.6 61.2 74.4
6/1/12
Weight Distribution
Model
Vertical
Shipping
Weight
Horizontal
Shipping
Weight
Horizontal Weight Distribution
Front Back
1 2 3 4
009 159.7 175.5 61.2 37.7 39.0 37.7
012 163.8 179.6 65.8 38.1 38.1 37.7
015 174.6 188.2 54.4 54.4 20.4 59.0
Weights are listed in kg 7/18/13
Figure 3: Hanger Location and Assembly