Bryant R-22 561G User Manual

installation and start-up instructions
10 SEER 3 PHASE R-22 SPLIT SYSTEM AIR CONDITIONER
NOTE: Read the entire instruction manual before starting the installation.
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SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thor­oughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements.
Recognize safety information. This is the safety-alert symbol When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and CAU­TION. These words are used with the safety-alert symbol. DAN­GER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.
WARNING: ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label.
INSTALLATION RECOMMENDATIONS
NOTE: In some cases noise in the living area has been traced to
gas pulsations from improper installation of equipment.
1. Locate unit away from windows, patios, and decks where unit-operation sound may disturb customer.
2. Ensure that vapor- and liquid-tube diameters are appropriate to capacity of unit. (See Table 1.)
3. Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends.
4. Leave some slack between structure and unit to absorb vibration.
5. When passing refrigerant tubes through the wall, seal opening with RTV or other pliable silicon-based caulk. (See Fig. 2.)
561G
Cancels: II 561C-18-6 II 561G-30-1
3-06
.
6. Avoid direct tubing contact with water pipes, duct work, floor joists, wall studs, floors, and walls.
7. Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap that comes in direct contact with tubing. (See Fig. 2.)
8. Ensure that tubing insulation is pliable and completely surrounds vapor tube.
9. When necessary, use hanger straps which are 1 in. wide and conform to shape of tubing insulation. (See Fig. 2.)
10. Isolate hanger straps from insulation by using metal sleeves bent to conform to shape of insulation.
CAUTION: UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or improper operation. If ANY refrigerant tubing is buried, providea6in. vertical rise at service valve. Refrigerant tubing lengths up to 36 in. may be buried without further special consideration. Do not bury more than 36 inches of refrigerant tubing in the ground.
I. CHECK EQUIPMENT AND JOB SITE
A. UNPACK UNIT
Move to final location. Remove carton, taking care not to damage unit.
B. INSPECT EQUIPMENT
File claim with shipping company prior to installation if shipment is damaged or incomplete. Locate unit-rating plate on unit-corner panel. It contains information needed to properly install unit. Check rating plate to be sure unit matches job specifications.
Fig. 1—Model 561G
INSTALLATION
A98524
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Avoid contact between tubing and structureNOTE:
OUTDOOR WALL INDOOR WALL
CAULK
LIQUID TUBE
unit and 48 in. above unit. For proper airflow, a 6-in. clearance on 1 side of unit and 12 in. on all remaining sides must be maintained. Maintain a distance of 24 in. between units. Position so water, snow, or ice from roof or eaves cannot fall directly on unit.
On rooftop applications, locate unit at least 6 in. above roof surface. Place unit above a load-bearing wall and isolate unit and tubing set from structure.
INSULATION
THROUGH THE WALL
JOIST
HANGER STRAP
(AROUND VAPOR
TUBE ONLY)
1 MIN.
SUSPENSION
INSULATION
LIQUID TUBE
Fig. 2—Connecting Tubing Installation
VAPOR TUBE
VAPOR TUBE
C
A94028
IV. OPERATING AMBIENT
The minimum outdoor operating ambient in cooling mode is 55°F, and the maximum outdoor operating ambient in cooling mode is 125°F.
V. CHECK INDOOR CHECK-FLO-RATER® PISTON (IF REQUIRED) OR ADD TXV
Check indoor coil piston to see if it matches the required piston shown on outdoor unit rating plate. If it does not match, replace indoor coil piston with piston shipped with outdoor unit. The piston shipped with outdoor unit is correct for any approved indoor coil combination.
NOTE: If a TXV is to be installed on indoor unit, remove indoor coil piston and follow Section VI.
VI. INSTALL TXV
IMPORTANT: If not factory installed, the TXV should be
mounted as close to the indoor coil as possible and in a vertical upright position. Avoid mounting the inlet tube vertically down. Valve is more susceptible to malfunction due to debris if inlet tube is facing down. A factory-approved filter drier must be installed in the liquid line.
A. Installing TXV in Place of Piston
1. Pump system down to 2 psig and recover refrigerant.
3
⁄8″D. (9.53) TIEDOWN
A
B
DIMENSIONS (IN.)
UNIT BASE
DIMENSIONS
22-1/2 x 22-1/2 3-11/16 18-1/8 14-3/8
30x30 6-1/2 23-1/2 20
TIEDOWN KNOCKOUT LOCATIONS
KNOCKOUTS (2) PLACES
A94199
ABC
Fig. 3—Mounting Unit to Pad
II. INSTALL ON A SOLID, LEVEL MOUNTING PAD
If conditions or local codes require the unit be attached to pad, tie-down bolts should be used and fastened through knockouts provided in unit base pan. Refer to unit-mounting pattern in Fig. 3 to determine base-pan size and knockout-hole location.
Arrange supporting members to adequately support unit and minimize transmission of vibration to building. Consult local codes governing rooftop applications.
III. CLEARANCE REQUIREMENTS
When installing, allow sufficient space for airflow, wiring, refrig­erant piping, and service. Allow 30-in. clearance to service end of
2. Remove hex nut from piston body. Use backup wrench on fan coils.
3. Remove and discard factory-installed piston. Be sure Teflon seal is in place.
4. Reinstall hex nut. Finger tighten nut plus 1/2 turn.
NOTE: If the piston is not removed from the body, TXV will not function properly.
CAUTION: EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or improper operation. To prevent damage to the unit, use a brazing shield and wrap TXV with wet cloth or use heat sink material.
5. Install TXV on indoor coil liquid line. Sweat swivel adapter to inlet of indoor coil and attach to TXV outlet. Use backup wrench to avoid damage to tubing or valve. Sweat inlet of TXV, marked INto liquid line. Avoid excessive heat which could damage valve.
6. Install vapor elbow with equalizer adapter to suction tube of line set and suction connection to indoor coil. Adapter has a 1/4-in. male connector for attaching equalizer tube.
7. Connect equalizer tube of TXV to 1/4-in. equalizer fitting on vapor line adapter.
8. Attach TXV bulb to horizontal section of suction line using clamps provided. Insulate bulb with field-supplied insula­tion tape. See Fig. 4 for correct positioning of sensing bulb.
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