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677C- - - - C
LEGACYt 14 SEER SINGLE- - PACKAGED HYBRID HEATr DUAL
FUEL SYSTEM WITH PURONr (R- - 410A) REFRIGERANT
SINGLE PHASE 2- - 5 NOMINAL TONS (SIZES 24- - 60)
THREE PHASE 3- - 5 NOMINAL TONS (SIZES 36- - 60)
IMPORTANT: Effective January 1, 2015, all split system and
packaged air conditioners must be installed pursuant to applicable
regional efficiency standards issued by the Department of Energy.
NOTE:
Read the entire instruction manual before starting the
installation.
NOTE:
Installer: Make sure the Owner's Manual and Service
Instructions are left with the unit after installation.
TABLE OF CONTENTS
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Installation Instructions
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SAFETY CONSIDERATIONS
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Improper installation, adjustment, alteration, service maintenance,
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or use can cause explosion, fire, electrical shock, or other
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conditions which may cause death, personal injury, or property
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damage. Consult a qualified installer, service agency, or your
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distributor or branch for information or assistance. The qualified
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installer or agency must use factory- -authorized kits or accessories
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when modifying this product. Refer to the individual instructions
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packaged with the kits or accessories when installing.
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Follow all safety codes. Wear safety glasses, protective clothing,
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and work gloves. Have a fire extinguisher available. Read these
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instructions thoroughly and follow all warnings or cautions
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included in literature and attached to the unit. Consult local
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building codes, the current editions of the National Fuel Gas Code
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(NFGC) NFPA 54/ANSI Z223.1, and the National Electrical Code
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(NEC) NFPA 70.
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In Canada refer to the current editions of the National Standards of
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Canada CAN/CSA- -B149.1 and .2 Natural Gas and Propane
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Installation codes, and Canadian Electrical Code CSA C22.1
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Recognize safety information. This is the safety- -alert symbol
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When you see this symbol on the unit and in instructions or manu-
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als, be alert to the potential for personal injury. Understand these
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signal words: DANGER, WARNING, and CAUTION. These
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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 per-
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Fig. 1 - - Unit 677C- -- -C
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Related Manuals for Bryant Legacy 677C**C Series
Summary of Contents for Bryant Legacy 677C**C Series
-
Page 1: Table Of Contents
677C- - - - C LEGACYt 14 SEER SINGLE- - PACKAGED HYBRID HEATr DUAL FUEL SYSTEM WITH PURONr (R- - 410A) REFRIGERANT SINGLE PHASE 2- - 5 NOMINAL TONS (SIZES 24- - 60) THREE PHASE 3- - 5 NOMINAL TONS (SIZES 36- - 60) Installation Instructions IMPORTANT: Effective January 1, 2015, all split system and packaged air conditioners must be installed pursuant to applicable... -
Page 2: Introduction
sonal injury or death. CAUTION is used to identify unsafe practic- INSPECT SHIPMENT es which may result in minor personal injury or product and prop- Inspect for shipping damage before removing packaging materials. erty damage. NOTE is used to highlight suggestions which will If unit appears to be damaged or is torn loose from its anchorage, result in enhanced installation, reliability, or operation. - Page 3 A150538 Fig. 2 - - 24- -30 Unit Dimensions...
- Page 4 A150539 Fig. 3 - - 36- -60 Unit Dimensions...
- Page 5 HVAC unit HVAC unit basepan base rails Sealing Gasket Roofcurb Anchor screw Wood nailer* Flashing field supplied Roofcurb* Insulation (field supplied) Roofing material field supplied Cant strip field supplied SMALL CURB A09418 *Provided with roofcurb A09090 ROOF CURB DETAIL LARGE CURB A09415 A09419 CATALOG...
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Page 6: Slab Mount
CAUTION - NOTICE TO RIGGERS PRUDENCE - AVIS AUX MANIPULATEUR ACCESS PANELS MUST BE IN PLACE WHEN RIGGING. PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION. Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition DUCTS MINIMUM HEIGHT: 36"... -
Page 7: Connect Condensate Drain
Training for operators of the lifting equipment should include, but the outlet of the trap is at least 1 in. (25 mm) lower than the not be limited to, the following: drain- -pan condensate connection. This prevents the pan from overflowing. -
Page 8: Install Duct Connections
gas supply piping for 0.5 IN. W.C. maximum pressure drop. Never 5. Install an accessible, external, manual main shutoff valve in use pipe smaller than the 1/2- -in. (12.7 mm) FPT gas inlet on the gas supply pipe within 6 ft (1.8 m) of heating section. unit gas valve. - Page 9 1. Open all electrical disconnects before starting any service 5. Size all ductwork for maximum required airflow (either work. heating or cooling) for unit being installed. Avoid abrupt 2. Remove horizontal (metal) duct covers to access vertical duct size increases or decreases or performance may be (downflow) discharge duct knockouts in unit basepan.
- Page 10 Table 1 – Physical Data Unit Size 24040 24060 30040 30060 36060 36090 Nominal Capacity --- ton Shipping Weight (lb) (kg) Compressor / Quantity Scroll / 1 Refrigerant R --- 410A Refrigerant Quantity (lb) Quantity (kg) Refrigerant Metering Device Indoor TXV, Outdoor Dual Accuraters Orifice OD (in) 0.032 (2) 0.032 (2)
- Page 11 Table 1 - - Physical Data Cont’d) Unit Size 42060 42090 48090 48115 48130 60090 60115 60130 Nominal Capacity --- ton Shipping Weight (lb) (kg) Compressor / Quantity Scroll / 1 Refrigerant R --- 410A Refrigerant Quantity (lb) 11.2 11.2 11.9 11.9 11.9...
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Page 12: Install Electrical Connections
Step 10 — Install Electrical Connections 3. Locate the black and yellow wires connected to the line side of the contactor. WARNING 4. Connect field L1 to black wire on connection 11 of the compressor contactor. 5. Connect field wire L2 to yellow wire on connection 23 of ELECTRICAL SHOCK HAZARD the compressor contactor. -
Page 13: Balance Point Setting Thermidistat Or Hybrid Heat
PRE- -START- -UP HIGH VOLTAGE WARNING POWER LEADS POWER (SEE UNIT WIRING SUPPLY LABEL) FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury, EQUIP GR FIELD-SUPPLIED death or property damage. FUSED DISCONNECT 1. Follow recognized safety practices and wear protective CONTROL BOX goggles when checking or servicing refrigerant system. -
Page 14: Check For Refrigerant Leaks
5. Charge unit with Puron (R- -410A) refrigerant, using an WARNING electronic scale. Refer to unit rating plate for required charge. Step 2 — Unit Sequence of Operation FIRE, EXPLOSION HAZARD Failure to follow this warning could result in personal injury, a. -
Page 15: Start- -Up Heating And Make Adjustments
located by removing the burner access panel (see Fig. 19). During 2. Set the heating temperature control of the thermostat above normal operation, the LED is continuously on. room temperature. 3. The induced- -draft motor will start. Step 3 — Start- -up Heating and Make Adjust- 4. -
Page 16: Adjust Gas Input
When the gas supply being used has a different heating value or 3. 112.5 x 1 =112.5 ft of gas flow/hr. specific gravity, refer to national and local codes, or contact your 4. 112.5 x 1050 = 118,125 Btuh input. distributor to determine the required orifice size. -
Page 17: Start- -Up Cooling And Make Adjustments
When the air temperature at the limit switch drops to the WARNING low- -temperature setting of the limit switch, the switch closes and completes the control circuit. The direct- -spark ignition system cycles and the unit returns to normal heating operation. EXPLOSION HAZARD Failure to follow this warning could Table 5 –... -
Page 18: Indoor Airflow And Airflow Adjustments
refrigerant if actual temperature is more than 2F (1.1C) 2. Remove the current speed tap wire from the “GAS HEAT” lower than required liquid line temperature. terminal on the interface fan board (IFB) (Fig. 14) and place vinyl cap over the connector on the wire. NOTE: If the problem causing the inaccurate readings is a 3. -
Page 19: Continuous Fan Operation
fan speed and place desired speed tap wire on “HIGH” on the interface board. HEAT HIGH 4. Refer to airflow tables (Table 8 or 9) to determine allowable speeds for the dehumidification cooling fan speed. In Table 8 or 9, speeds that are not allowed for dehumidification cooling are shaded. - Page 44 A150506 Fig. 15 - - 208/230- -1- -60 Connection Wiring Diagram...
- Page 45 A150516 Fig. 15 Cont. - - 208/230- -1- -60 Ladder Wiring Diagram...
- Page 46 A150507 Fig. 16 - - 208/230- -3- -60 Connection Wiring Diagram...
- Page 47 A150517 Fig. 16 Cont. - - 208/230- -3- -60 Ladder Wiring Diagram...
- Page 48 Superheat charging table is derived from optimum performance point. (95_F [35_C] outdoor ambient and (80_F [27_C] dry bulb; 67_F [19_C] wet bulb indoor condition.) Where a dash( --- ---) appears do not attempt to check charge or charge unit under these conditions using the superheat method. (Weigh in method should be used.) A150625 To properly check or adjust charge, conditions must be favorable for subcooling charging.
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Page 49: Maintenance
MAINTENANCE 5. Check and inspect heating section before each heating season. Clean and adjust when necessary. To ensure continuing high performance and to minimize the 6. Check flue hood and remove any obstructions, if necessary. possibility of premature equipment failure, periodic maintenance Air Filter must be performed on this equipment. -
Page 50: Flue Gas Passageways
(See Fig. 18) to the heat exchanger assembly. Inspect the Integrated heat exchangers. Gas Unit 3. Clean all surfaces, as required, using a wire brush. Controller (IGC) Limit Switch Auto Transformer fuses used on 460 Remove blower access panel (see Fig. 19). Limit switch is located volt units only. -
Page 51: Outdoor Fan
between the coils. Be sure to flush all dirt and debris from the unit Outdoor Fan base. CAUTION Inspect the drain pan and condensate drain line when inspecting the coils. Clean the drain pan and condensate drain by removing all foreign matter from the pan. -
Page 52: Gas Input
FAN GRILLE MOTOR MOTOR SHAFT A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE “A” SIZE Fig. 23 - - Fan Blade Position Gas Input 3. Apply ohm meter leads across switch. You should have continuity on a good switch. The gas input does not require checking unless improper heating NOTE: Because these switches are attached to refrigeration... - Page 53 OUTDOOR FAN RELAY DEFROST THERMOSTAT MUST BE CLOSED BEFORE DEFROST TIMER BEGINS T1 - ENABLES DEFROST Y OUTPUT TO PRESSURE SWITCHES AND CONTACTOR TIMER.MUST BE ENERGIZED FOR DEFROST TIMER TO START C - COMMON O - REVERSING VALVE SPEEDUP THERMOSTAT INPUTS A150622 Fig.
- Page 54 INDOOR COIL OUTDOOR COIL TXV in Metering Position HP S Bypass LEGEND Position HPS – High Pressure Switch LCS – Loss of Charge Switch Accurater ® Metering De vice Arrow indicates direction of flo w C03011 Fig. 26 - - Typical Heat Pump Operation, Cooling Mode...
- Page 55 INDOOR COIL OUTDOOR COIL TXV in Bypass Position HP S Metering Position LEGEND HPS – High Pressure Switch LCS – Loss of Charge Switch Accurater ® Metering De vice Arrow indicates direction of flo w C03012 Fig. 27 - - Typical Heat Pump Operation, Heating Mode The scroll compressor pumps refrigerant throughout the system by roofing.
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Page 56: Troubleshooting
TROUBLESHOOTING temperature. Normal temperature range is closed at 32_ 3_F (0 1.7_C) and open at 65_ 5_F (18 2.8_C). Use the Troubleshooting Guides (See Tables 13- -15) if problems NOTE: The defrost thermostat must be located on the liquid side occur with these units. - Page 57 Table 13 – Troubleshooting Guide - - Cooling or Heat Pump Heating Mode SYMPTOM CAUSE REMEDY Power Failure Call power company. Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer, or control Compressor and Outdoor fan will not Replace component.
- Page 58 Table 14 – Troubleshooting Guide–Heating SYMPTOM CAUSE REMEDY Water in gas line Drain. Install drip leg. No power to furnace Check power supply fuses, wiring or circuit breaker. Check transformer. No 24--v power supply to control circuit NOTE: Some transformers have internal over--current protection that requires a cool--down period to reset.
- Page 59 START- -UP CHECKLIST (Remove and Store in Job Files) I. PRELIMINARY INFORMATION MODEL NO.: SERIAL NO.: DATE: TECHNICIAN: II. PRESTART- -UP (Insert check mark in box as each item is completed) ( ) VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT ( ) REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS ( ) CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS ( ) CHECK GAS PIPING FOR LEAKS (WHERE APPLICABLE)
- Page 60 Catalog No. II677C ---12 E2015 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 12/15 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
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