Bryant Legacy 549J 12 Series, Руководство по установке

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Fig. 4 — Typical Unit Piping Schematic
Fig. 5 — CoreMax
1
Access Port Assembly
Refrigerant System Pressure Access Ports
There are two access ports in each circuit - on the suction tube
and the discharge tube near the compressor. These are brass fit -
tings with black plastic caps. The hose connection fittings are
standard
1
/
4
-in. SAE male flare couplings.
The brass fittings are two-piece high flow valves, with a recep -
tacle base brazed to the tubing and an integral spring-closed
check valve core screwed into the base. See Fig. 5. This check
valve is permanently assembled into this core body and cannot
be serviced separately. Replace the entire core body if neces -
sary. Service tools are available from RCD that allow the re -
placement of the check valve core without having to recover
the entire system refrigerant charge. Apply compressor refrig -
erant oil to the check valve core’s bottom O-ring. Install the
fitting body and torque to 96  10 in-lb. (10.9  1 Nm). Do not
exceed 106 in-lb. (11.9 Nm) when tightening.
INSTALLATION
Jobsite Survey
Complete the following checks before installation.
1. Consult local building codes and the NEC (National Elec -
trical Code) ANSI/NFPA 70 for special installation
requirements.
2. Determine unit location (from project plans) or select unit
location.
3. Check for possible overhead obstructions which may
interfere with unit lifting or rigging.
COMPRESSOR
ACCUMULATOR
HPS
COMPRESSOR
ACCUMULATOR
HPS
Filter
Drier
2B
1B
LPS/LOC
Acutrol
DFT 1
Cooling Liquid Lines
DFT 2
2A
1A
1D
2D
Outdoor Coil
Indoor Coil
Comp 2
Comp 1
2C
1C Strainer
Heating Mode Liquid Lines
Acutrol
Reversing
Valve
Reversing
Valve
1. CoreMax is a registered trademark of Fastest, Inc.
5/8
” HEX
0.47
30°
0.596
1/2-20 UNF RH
1/2
” HEX
45°
WASHER
O-RING
7/16-20 UNF RH
DEPRESSOR PER AHRI 720
+.01/-.035
FROM FACE OF BODY
This surface provides a metal to metal seal when
torqued into the seat. Appropriate handling is
required to not scratch or dent the surface.
SEAT CORE
(Part No. EC39EZ067)