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5

SAFETY INFORMATION

USE ONLY WITH TYPE OF GAS
APPROVED FOR THIS UNIT. REFER
TO THE UNIT RATING PLATE.

s

WARNING

!

INSTALL THIS UNIT ONLY IN A
LOCATION AND POSITION AS SPECI-
FIED IN THE LOCATION REQUIRE-
MENTS AND CONSIDERATIONS SEC-
TION OF THESE INSTRUCTIONS.
PROVIDE ADEQUATE COMBUSTION
AND VENTILATION AIR TO THE UNIT
SPACE AS SPECIFIED IN THE VENT-
ING SECTION OF THESE INSTRUC-
TIONS.

s

WARNING

!

PROVIDE ADEQUATE COMBUSTION
AND VENTILATION AIR TO THE UNIT
SPACE AS SPECIFIED IN THE COM-
BUSTION AND VENTILATION AIR
SECTION OF THESE INSTRUCTIONS.

s

WARNING

!

COMBUSTION PRODUCTS MUST BE
DISCHARGED OUTDOORS.
CONNECT THIS UNIT TO AN
APPROVED VENT SYSTEM ONLY, AS
SPECIFIED IN VENT PIPE
INSTALLATION SECTION OF THESE
INSTRUCTIONS.

s

WARNING

!

ALWAYS INSTALL UNIT TO OPERATE WITHIN THE UNIT'S INTENDED TEM-
PERATURE-RISE RANGE WITH A DUCT SYSTEM WHICH HAS AN EXTER-
NAL STATIC PRESSURE WITHIN THE ALLOWABLE RANGE, AS SPECIFIED
IN DUCTING SECTION OF THESE INSTRUCTIONS. SEE ALSO UNIT RATING
PLATE.

s

WARNING

!

NEVER TEST FOR GAS LEAKS WITH AN OPEN FLAME. USE A COMMER-
CIALLY AVAILABLE SOAP SOLUTION MADE SPECIFICALLY FOR THE
DETECTION OF LEAKS TO CHECK ALL CONNECTIONS, AS SPECIFIED IN
GAS SUPPLY AND PIPING SECTION OF THESE INSTRUCTIONS.

s

WARNING

!

WHEN A UNIT IS INSTALLED SO THAT SUPPLY DUCTS CARRY AIR CIRCU-
LATED BY THE UNIT TO AREAS OUTSIDE THE SPACE CONTAINING THE
UNIT, THE RETURN AIR SHALL ALSO BE HANDLED BY DUCT(S) SEALED
TO THE UNIT CASING AND TERMINATING OUTSIDE THE SPACE CONTAIN-
ING THE UNIT.

s

WARNING

!

THIS UNIT MAY BE USED TO HEAT THE BUILDING OR STRUCTURE DUR-
ING CONSTRUCTION IF THE FOLLOWING INSTALLATION REQUIREMENTS
ARE MET. INSTALLATION MUST COMPLY WITH ALL INSTALLATION
INSTRUCTIONS INCLUDING:

• PROPER VENT INSTALLATION;

• FURNACE OPERATING UNDER THERMOSTATIC CONTROL;

• RETURN AIR DUCT SEALED TO THE FURNACE;

• AIR FILTERS IN PLACE;

• SET FURNACE INPUT RATE AND TEMPERATURE RISE PER RATING

PLATE MARKING;

• MEANS OF PROVIDING OUTDOOR AIR REQUIRED FOR COMBUSTION;

• RETURN AIR TEMPERATURE MAINTAINED BETWEEN 55°F (13°C) AND

80°F (27°C); AND

• INSTALLATION OF EXHAUST AND COMBUSTION AIR INLET HOODS

COMPLETED;

• CLEAN FURNACE, DUCT WORK AND COMPONENTS UPON SUBSTAN-

TIAL COMPLETION OF THE CONSTRUCTION PROCESS, AND VERIFY
FURNACE OPERATING CONDITIONS INCLUDING IGNITION, INPUT RATE,
TEMPERATURE RISE AND VENTING ACCORDING TO THE INSTRUC-
TIONS.

s

WARNING

!

Содержание H2AC

Страница 1: ...ANUAL PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE BY A SERVICEMAN WARNING THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUAL IFIED LICENSED SERVICE PERSONNEL FOR PROPER INSTALLA...

Страница 2: ...m Pressure Test and Start Up 24 H2AC Rooftop Unit Sequence Of Operation 25 Procedure for Calculating the Total Equivalent Length of Tubing 26 H2AC Rooftop Unit Water Heater Sequence of Operation 29 Fa...

Страница 3: ...sting of a scroll compressor condenser coil evaporator coil with TXV a circulation air blower a condenser fan a refrigerant to air heat exchanger assembly a refrigerant to water heat exchanger 3 way v...

Страница 4: ...o not install a suction line filter drier in the liquid line A liquid line filter drier is standard on every unit Desiccant drying agent must be compatible for POE oils and R 410A 3 Evaporator Coil TX...

Страница 5: ...BLE SOAP SOLUTION MADE SPECIFICALLY FOR THE DETECTION OF LEAKS TO CHECK ALL CONNECTIONS AS SPECIFIED IN GAS SUPPLY AND PIPING SECTION OF THESE INSTRUCTIONS sWARNING WHEN A UNIT IS INSTALLED SO THAT SU...

Страница 6: ...T A1207 07 FIGURE 1 UNIT DIMENSIONS FOR CLEARANCES SEE PAGE 14 FIGURE 4 IMPORTANT THIS UNIT MUST BE MOUNTED LEVEL IN BOTH DIRECTIONS TO ALLOW WATER TO DRAIN FROM THE CONDENSER SECTION AND CONDENSATE P...

Страница 7: ...FIGURE 2 LEFT VIEW 7 ST A1207 08...

Страница 8: ...oll 2 Scroll 2 Scroll 2 Scroll Outdoor Sound Rating dB 5 91 91 91 91 Outdoor Coil Fin Type Louvered Louvered Louvered Louvered Tube Type MicroChannel MicroChannel MicroChannel MicroChannel MicroChanne...

Страница 9: ...Scroll 2 Scroll 2 Scroll Outdoor Sound Rating dB 5 91 91 91 91 Outdoor Coil Fin Type Louvered Louvered Louvered Louvered Tube Type MicroChannel MicroChannel MicroChannel MicroChannel MicroChannel Dep...

Страница 10: ...UH kW 43 3 C Sens BTUH kW Power 115 F Total BTUH kW 46 1 C Sens BTUH kW Power 120 F Total BTUH kW 48 9 C Sens BTUH kW Power 125 F Total BTUH kW 51 7 C Sens BTUH kW Power DR Depression ratio Total Tota...

Страница 11: ...FGH D 3 A B C 7D 769E FGH D 94 A B C 7D 786E6 FGH D 9 A B C 7D 78 E4 FGH D 244 A B C 7D 785E3 FGH D 24 A B C 7D 7 4E FGH D 224 A B C 7D 7 8E8 FGH D 22 A B C 7D 7 E2 FGH D 264 A B C 7D 7 3E9 FGH D 26 A...

Страница 12: ...s not intended to be the sole method of unit freeze protection If the H2AC rooftop unit is installed in a geographic location where freezing temperature can occur the water lines valves and couplings...

Страница 13: ...is installed See Figure 1 To attach exhaust combustion air inlet hood 1 Open blower access panel For location of blower access panel see Figure 1 2 Remove exhaust combustion air inlet hoods from the c...

Страница 14: ...R S RESPONSIBILITY E D C B A Recommended Clearance in mm Location 80 2032 18 457 18 457 18 457 60 1524 Without Economizer 48 1219 With Economizer A Front B Condenser Coil C Duct Side D Evaporator End...

Страница 15: ...nsulation 1 2 to 1 thick insulation is usually sufficient for ductwork inside the air conditioned space Provide balancing dampers for each branch duct in the supply system Properly support ductwork fr...

Страница 16: ...ROOFCURB FIGURE 8 ROOFCURB NEVER ALLOW PRODUCTS OF COMBUSTION OR THE FLUE PRODUCTS TO ENTER THE RETURN AIR DUCTWORK OR THE CIRCULATING AIR SUP PLY ALL RETURN DUCTWORK MUST BE ADEQUATELY SEALED AND SEC...

Страница 17: ...d petroleum gases must be used at all threaded pipe connections 8 IMPORTANT any additions changes or conversions required for the furnace to satisfactorily meet the application should be made by a qua...

Страница 18: ...ing value of the gas BTU FT3 may be determined by consulting the local natural gas utility or the L P gas supplier B LP CONVERSION Convert the unit to use liquefied petroleum LP gas by replacing with...

Страница 19: ...nly small variations in the gas flow should be made by means of the pressure regula tor adjustment Furnaces functioning on LP gas must be set by means of the tank or branch supply regulators The furna...

Страница 20: ...FOR NATURAL OR LP GAS INPUT BTU HR METER SIZE CU FT HEATING VALUE OF GAS BTU PER CU FT 900 1000 1040 1100 2500 MIN SEC MIN SEC MIN SEC MIN SEC MIN SEC TABLE 3 FIGURE 11 CONDENSATE DRAIN DO NOT OVERTIG...

Страница 21: ...he unit disconnect to unit the smallest wire size allowable in Table 4 may be used as the disconnect must be in sight of the unit 2 Wire size based on 75 C rated wire insulation for 1 voltage drop 3 F...

Страница 22: ...TYPICAL THERMOSTAT WIRING WIRE SIZE AWG 14 1 2 7 8 12 1 2 7 8 10 1 2 7 8 8 3 4 1 31 32 6 1 1 23 64 4 1 1 23 64 3 1 1 4 1 23 32 2 1 1 4 1 23 32 1 1 1 2 1 31 32 0 1 1 2 1 31 32 00 2 2 15 32 000 2 2 15...

Страница 23: ...opening through the thermostat wiring chase on the unit Figure 13 and connect to the low volt age thermostat connections see wiring diagram Never install the thermostat on an outside wall or where it...

Страница 24: ...ressure Drop graph to verify that total sys tem equivalent piping length will not result in less than the 15 GPM minimum flow rate B SYSTEM PRESSURE TEST AND START UP 1 Pressure test system complete s...

Страница 25: ...25 H 2 AC Rooftop Unit w circulation pump...

Страница 26: ...able Data condensed from Table 7 of the Copper Development Organization Allowances are for streamlined soldered fittings and recessed threaded fittings The equivalent lengths presented above are based...

Страница 27: ...5 30 Water Velocity using 1 1 2 Nom Type L Copper Tubing fps 2 71 3 61 4 51 5 41 Available Pressure Head at Unit 230 460 Volts Head ft 30 3 23 8 16 3 7 7 psig 13 1 10 3 7 1 3 3 Maximum Equivalent Feet...

Страница 28: ...28 0 1 2 34 5 666 758 9 978 1998 2 1A B C 2 D E FG7HI 2 1A B 2 J 4 2 K D E E K L L D E...

Страница 29: ...ssure 565 psig and there is still a call for cooling the unit three way valve switches back to the air cooled condenser mode turns on the out door fans and energizes the liquid line solenoid from the...

Страница 30: ...UT WATER IN LOW AMBIENT CONTROL REFRIGERANT LIQUID LINE PRESSURE SENSOR REFRIGERANT LOW PRESSURE SENSOR REFRIGERANT LOW PRESSURE SWITCH CHECK VALVE CHECK VALVE CHECK VALVE HIGH PRESSURE SWITCH WATER P...

Страница 31: ...NTROL REFRIGERANT LIQUID LINE PRESSURE SENSOR REFRIGERANT LOW PRESSURE SENSOR REFRIGERANT LOW PRESSURE SWITCH CHECK VALVE CHECK VALVE CHECK VALVE HIGH PRESSURE SWITCH WATER PRESSURE SENSOR WATER HEATI...

Страница 32: ...NOID WATER OUT WATER IN LOW AMBIENT CONTROL REFRIGERANT LIQUID LINE PRESSURE SENSOR REFRIGERANT LOW PRESSURE SENSOR REFRIGERANT LOW PRESSURE SWITCH CHECK VALVE CHECK VALVE CHECK VALVE HIGH PRESSURE SW...

Страница 33: ...ENOID AIR SOLENOID WATER OUT WATER IN LOW AMBIENT CONTROL REFRIGERANT LIQUID LINE PRESSURE SENSOR REFRIGERANT LOW PRESSURE SENSOR REFRIGERANT LOW PRESSURE SWITCH CHECK VALVE CHECK VALVE CHECK VALVE HI...

Страница 34: ...the 45 second second stage warmup period control checks thermostat input If only W1 is called for W2 is de energized and the control starts a 5 second off delay on the W2 inducer 11 After fixed 5 sec...

Страница 35: ...wer is inter rupted During the lockout mode neither the ignitor or gas valve will be energized until the system is reset by turning the thermostat to the OFF position or interrupting the electrical po...

Страница 36: ...controls are located on the burner shield These devices senses blockage in the heat exchanger or insufficient combustion air This shuts off the main burners if excessive temperatures occur in the bur...

Страница 37: ...call for second stage cooling is initiated after a call for first stage cooling is established the control energizes Y2 and energizes the second stage compres sor 2 Control enters normal operating lo...

Страница 38: ...ulators from inside the heat exchangers by inserting the blade of a screwdriver under the locking tabs Pop the tabs out of the expanded grooves of the heat exchanger Slide the turbulators out of the h...

Страница 39: ...drain at the same time the evaporator coil is checked Clean the drain pan by flushing with water and removing any matters of obstructions which may be present 4 Go to next section for cleaning the con...

Страница 40: ...ings on each drain valve Connect the hose on the inlet valve to the outlet of a small circulation pump 4 Pour approximately two to three gallons of food grade white vinegar into the pail 5 Place the i...

Страница 41: ...3648 876 3845 896 4050 916 4262 7000 3303 591 2023 616 2131 641 2246 665 2368 689 2499 712 2636 735 2782 757 2935 779 3095 801 3263 822 3439 843 3622 864 3813 884 4012 903 4218 923 4431 7200 3398 606...

Страница 42: ...164 164 164 164 100 100 HP Compressor 2 7 1 2 7 1 2 7 1 2 7 1 2 Amps RLA Comp 2 25 25 25 25 12 8 12 8 Amps LRA Comp 2 164 164 164 164 100 100 No 3 3 3 3 Volts 208 230 208 230 460 460 Phase 1 1 1 1 HP...

Страница 43: ...evacuate recharge add filter drier Incorrect voltage At compressor terminals voltage must be within 10 of rating plate volts when unit is operating Compressor short cycles Incorrect voltage At compre...

Страница 44: ...AGE TRANSFORMER CHECK WIRING CHECK FOR 208 230 VAC OR 460V TO IDM MOTOR CHECK IGNITOR CABLE CHECK SPARK IGNITOR POSITION AND CONDITION IS EACH NEGATIVE PRESSURE SWITCH CLOSED CHECK FOR OPEN ROLL OUT C...

Страница 45: ...PER THERMOSTAT OPERATION REMOVE VALVE LEAD AT GAS VALVE IF VALVE CLOSES RECHECK THE THERMOSTAT AND WIRING IF OK THEN REPLACE VALVE YES NO SYSTEM RUNS UNTIL CALL FOR HEAT ENDS TROUBLESHOOTING ENDS REPE...

Страница 46: ...46 FIGURE 22 H2AC ROOFTOP UNIT ALARMS AND TROUBLESHOOTING network or a er 24 hr lockout mer is reset...

Страница 47: ...47 FIGURE 23 RKHL SERIES XIII WIRING DIAGRAMS...

Страница 48: ...48 FIGURE 24 RKHL...

Страница 49: ...49 FIGURE 25 RKHL SERIES...

Страница 50: ...50 FIGURE 26 RKHL SERIES...

Страница 51: ...RT WHERE SUCTION AND DISCHARGE INTERSECT IF X IS BELOW OUTDOOR AMBIENT LINE ADD CHARGE AND REPEAT STEPS 1 3 IF X IS ABOVE OUTDOOR AMBIENT LINE RECOVER EXCESS CHARGE AND REPEAT STEPS 1 3 CAUTION INSTRU...

Страница 52: ...CM 0117 52...

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