Bryant 661C Installation And Start-Up Instructions Manual

10 seer split-system heat pump

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NOTE: Read the entire instruction manual before starting the
installation.
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 thor-
oughly 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 CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER 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 would 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: 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(es) with a suitable
warning label. Electrical shock can cause personal injury
or death.
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, decks, etc. where
unit operation sounds may disturb customer.
2. Ensure that vapor and liquid tube diameters are appropriate
to capacity of unit.
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. 3.)
installation and
start-up instructions
10 SEER
SPLIT-SYSTEM
HEAT PUMP
.
—1—
Cancels: II 661C-18-6
Fig. 1—Models 661C
Fig. 2—Models 661G and 661S
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 which comes in direct contact with
tubing. (See Fig. 3.)
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. 3.)
10. Isolate hanger straps from insulation by using metal sleeves
bent to conform to shape of insulation.
661C, G
661S
II 661C-18-7
2-02
A94355
A98524

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Summary of Contents for Bryant 661C

  • Page 1 5. When passing refrigerant tubes through the wall, seal opening with RTV or other pliable silicon-based caulk. (See Fig. 3.) Cancels: II 661C-18-6 Fig. 1—Models 661C Fig. 2—Models 661G and 661S 6. Avoid direct tubing contact with water pipes, duct work, floor joists, wall studs, floors, and walls.
  • Page 2 NOTE: Avoid contact between tubing and structure OUTDOOR WALL INDOOR WALL CAULK INSULATION THROUGH THE WALL HANGER STRAP (AROUND VAPOR TUBE ONLY) 1 MIN. SUSPENSION Fig. 3—Connecting Tube Installation When outdoor unit is connected to factory-approved indoor unit, outdoor unit contains system refrigerant charge for operation with indoor unit of the same size when connected by 15 ft of field-supplied or factory accessory tubing.
  • Page 3: Check Defrost Thermostat

    TABLE 1—REFRIGERANT CONNECTIONS AND RECOMMENDED LIQUID AND VAPOR TUBE DIAMETERS (IN.) LIQUID UNIT SIZE Connection Diameter Tube Diameter 018, 024 060, 036 042, 048 NOTES: 1. Tube Diameters are for lengths up to 50 ft or 20 ft vertical differential. For tubing lengths greater than 50 ft, consult the Application Guideline and Service Manual for Air Conditioners and Heat Pumps Using R-22 Refrigerant.
  • Page 4: Make Electrical Connections

    PISTON BODY STRAINER SWEAT/FLARE ADAPTER Fig. 6—Liquid Service Valve with Sweat Adapter Tube DISCONNECT PER N.E.C. AND/OR LOCAL CODES FIELD POWER WIRING BLUE 3 PHASE ONLY FIELD GROUND WIRING GROUND Fig. 7—Line Power Connections IX. MAKE ELECTRICAL CONNECTIONS WARNING: To avoid personal injury or death, do not supply power to unit with compressor terminal box cover removed.
  • Page 5 NOTE: Remove wires from crimp nut in indoor fan coil when installing outdoor thermostats. IMPORTANT: When using outdoor thermostats, W 2 must be energized when requesting supplemental heat. Fig. 8—Typical 24v Circuit Connections using Bryant Model HP Thermostat with Fan Coils and No Outdoor Thermostat, 1 BRYANT PROGRAMMABLE THERMOSTAT...
  • Page 6 FA, FB, FC, OTHER FD, FF, FH HP THERMOSTAT FAN COIL 24 VAC HOT 24 VAC COM HEAT STAGE 2 COOL/HEAT STAGE 1 INDOOR FAN RVS COOLING EMERGENCY IF AVAILABLE HEAT FA, FB, FC, OTHER FD, FF, FH HP THERMOSTAT FAN COIL 24 VAC HOT 24 VAC COM...
  • Page 7 LEGEND 24-V FACTORY WIRING 24-V FIELD WIRING FIELD SPLICE CONNECTION OUTDOOR THERMOSTAT EMERGENCY HEAT RELAY SUPPLEMENTAL HEAT RELAY CAUTION: To prevent personal injury wear safety glasses, protective clothing, and gloves when handling refrigerant and observe the following: •Back-seating service valves are not equipped with Schrader valves.
  • Page 8: Final Checks

    Cooling Only Procedure on unit wiring and charging label. To check charge in heating mode, refer to Heating Check Chart Procedure. © 2002 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 TABLE 2—DEFROST CONTROL SPEED-UP TIMING SEQUENCE...

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