Bryant SINGLE PACKAGED HEAT PUMP UNITS 657A User Manual
Page 9
WARNING:
Lifting point should be directly over the
center of gravity for the unit. Failure to follow this
warning could result in personal injury or death.
VI.
CONNECT CONDENSATE DRAIN
NOTE:
When installing condensate drain connection be sure to
comply with local codes and restrictions.
Unit disposes of condensate through a 3/4-in. NPT fitting which
exits through the compressor access panel. See Fig. 2–5 (Front
View) for location of condensate connection.
Condensate water can be drained directly onto the roof in rooftop
installations (where permitted) or onto a gravel apron in ground-
level installations. Install a field-supplied condensate trap at end of
condensate connection to ensure proper drainage. Make sure that
the outlet of the trap is at least 1-in. lower than the drain-pan
condensate connection to prevent the pan from overflowing. Prime
the trap with water. When using a gravel apron, make sure it slopes
away from the unit.
If the installation requires draining the condensate water away
from the unit, install a 2-in. trap using a 3/4-in. NPT connection
(See Fig. 18). Make sure that the outlet of the trap is at least 1-in.
lower than the unit drain-pan condensate connection to prevent the
pan from overflowing. Prime the trap with water. Connect a drain
tube using a minimum of 3/4-in. PVC, 3/4-in. CPVC, or 3/4-in.
copper pipe (all field supplied). Do not undersize the tube. Pitch
the drain tube downward at a slope of at least 1 in. for every 10 ft
of horizontal run. Be sure to check the drain tube for leaks. Prime
trap at the beginning of the cooling season start-up.
VII.
INSTALL DUCT CONNECTIONS
The unit has duct flanges on the supply- and return-air openings on
the side and bottom of the unit. For downshot applications the
ductwork can be connected to the roof curb. See Fig. 2-5 for
connection sizes and locations.
IMPORTANT:
Use flexible connectors between ductwork and
unit to prevent transmission of vibration. Use suitable gaskets to
ensure weathertight and airtight seal. When electric heat is
Fig. 11—Optional Heat Pump Mounting Frame
C95013
NOTES:
1. Material consists of angle iron — 31.8 mm (1-1/4 in.) to 38 mm
(1-1/2 in.) commerical standard.
2. We ldframe together.
3. Pa int with z
inc-rich paint (rust-proof).
1
4
2
3
959 mm
(37 3/4 in.)
1
2
3
4
305 mm (12 in.)
TO
610 mm (24 in.) (4) REQ.
1010 mm
(39 3/4 in.) (2) REQ.
909 mm (35 3/4 in.) (2) REQ.
38 mm (1 1/4 in.)
406 mm (16 in.) (8) REQ.
1060 mm
(41 3/4 in.)
Fig. 12—Indoor Coil Access Panel
C95014
ACCESS PANEL
(REMOVE SCREWS)
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