Bryant SINGLE PACKAGED HEAT PUMP UNITS 657A - Manual (Page 8)

WARNING: Secure screws and paint protectors solidly
against unit base to hold lifting brackets in position.
Never use lifting brackets when the temperature is below
-10 F (-23 C). Never exceed 200 lbs per bracket of lifting
force. Never use lifting brackets for lifting other models
of air conditioning units. Lifting point should be directly
over the unit center of gravity. Failure to follow this
warning could result in personal injury or death.
1. Position brackets as close to the corners of unit as possible.
Be sure brackets are well outside of center of gravity (See
Fig. 2-5, and 7).
2. Position paint protectors and foam strips between screws
and painted surface of unit. Tighten screws until they make
contact with the paint protectors.
3. Secure device or hook of sufficient strength to hole in
bracket as shown in detail ’’C’’ of Fig. 7.
4. If wood top is available, use it for a spreader bar to prevent
straps from damaging unit. If wood top is not available, use
spreader bars of sufficient length.
UNITS WITH OPTIONAL BASE RAILS - Keep unit upright and
do not drop. Use spreader bars or top crate when rigging unit.
Rollers may be used to move unit across roof. Level unit for proper
condensate disposal. See Fig. 7 for additional information. Lifting
holes are provided in base rails as shown in Fig. 7, See Detail “A”
or “B-B”. Refer to rigging instructions on unit.
A. INSTALLATION
1. Position the lifting bracket assembly around the base of the
unit. Leave the top shipping skid on the unit to act as a
spreader bar. Be sure the strap does not twist.
2. Place each of the four (4) metal lifting brackets into the
rigging holds in the composite pan.
3. Tighten the ratchet strap unit tight. Lifting brackets should
be secure in the rigging holds.
4. Attach the clevis or hook of sufficient strength to hole in the
lifting bracket (See Fig. 7).
5. Attach safety straps directly to the field supplied rigging
straps or clevis clip. Do not attach the safety straps to the
lifting brackets.
6. Use the top of the unit as a spreader bar to prevent the
rigging straps from damaging the unit. If the wood top is not
available, use a spreader bar of sufficient length to not
damage the unit.
Fig. 9—Typical Unit Installation
C95013
INDOOR
THERMOS
TAT
DISCONNECT
PER NEC
FROM
POWER
SOURCE
RETURN
AIR
TOP COVER
NOTES:
1. Extend 6-in.
gravel apron around pad.
2. Provide a 3-ft service clearance at front and rear sides of unit.
REAR SIDE OF UNIT
SIDE
OF UNIT
WITH DUCT
CONNECTIONS
1161 mm
(45 11/16”)
1110 mm
(43 11/16”)
933 mm
(36 3/4”)
SIDE OF UNIT WITH
ACCESS PANELS FOR
CONTROL BOX AND
INDOOR BLOWER HOUSING
UNIT OUTLINE
PAD 984 mm
(38 3/4”)
—8—
Fig.10—Typical Slab Layout
C95039