Assessments - 2, GPA: 4
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UNITS, TANKS AND PIPING .......................10 VENT AND COMBUSTION AIR HOODS..................11 OPT ECONO/MOTORIZED DAMPER RAIN HOOD .........11 ENTHALPY SET POINT ADJUSTMENT........................11 PWR EXH/BARO RELIEF DMPR & RAIN HOOD OPT.......11 OPERATION ...................................19 COOLING SYSTEM ..................................19 PRELIMINARY OPERATION COOLING ..................19 COOLING SEQUENCE OF OPERATION .................19 NO OUTDOOR AIR OPTIONS ...............................19 ECONOMIZER WITH SINGLE ENTHALPY SENSOR .............19 ECONOMIZER WITH DUAL ENTHALPY SENSORS..............19 ECONOMIZER WITH POWER EXHAUST ......................19 MOTORIZED OUTDOOR AIR DAMPERS ......................19 CONTINUOUS BLOWER ...................................19 SAFETY CONTROLS.................................19 HEATING SYSTEM ..................................20 CONTINUOUS BLOWER ...................................20 INTERMITTENT BLOWER ..................................20 SAFETY CONTROLS.................................20 HEAT ANTICIPATOR SETPOINTS ......................21 START UP.....................................21 PRE-START CHECK LIST.............................21 OPERATING INSTRUCTIONS..........................21 TO LIGHT PILOT AND MAIN BURNERS:.......................21 TO SHUT DOWN..........................................22 POST-START CHECK LIST (GAS) ......................22 MANIFOLD GAS PRESSURE ADJUSTMENT..............22 PILOT CHECKOUT ..................................22 BURNER INSTRUCTIONS.............................22 BURNER AIR SHUTTER ADJUSTMENT..................23 CHECKING SUPPLY AIR CFM .........................23 ADJUSTMENT OF TEMPERATURE RISE ................24 BELT DRIVE BLOWER.....................................24 CHECKING GAS INPUT ..............................24 NATURAL GAS ...........................................24 SECURE OWNER'S APPROVAL........................24 MAINTENANCE.................................25 NORMAL MAINTENANCE.............................25 FILTERS ................................................25 MOTORS................................................25 OUTDOOR COIL..........................................25 BURNER & PILOT.........................................25 TO CLEAN BURNERS .....................................25 COMBUSTION AIR DISCHARGE.............................25 CLEANING FLUE & HEATING ELEMENTS................25 TROUBLESHOOTING ...........................26 LIST OF FIGURES Fig. # Pg. # 1 TYPICAL RIGGING............................5 2 CENTER OF GRAVITY.........................5 3 FIXED OUTDOOR AIR DAMPER.................6 4 RECOMMENDED DRAIN PIPING ................7 5 TYPICAL FIELD WIRING .......................9 6 EXT SUPPLY CONN EXT SHUT-OFF............10 7 BOTTOM SUPPLY CONN EXT SHUT-OFF........10 8 VENT AND COMBUSTION AIR HOODS ..........11 9 ENTHALPY SETPOINT ADJUSTMENT...........12 10 UNIT DIMENSIONS FRONT VIEW...............14 11 UNIT DIMENSIONS RAINHOOD ................14 12 UNIT DIMENSIONS REAR VIEW................15 13 208 VOLT & HIGH SPEED DRIVE ACCY ......... 16 14 GAS VALVE PIPING..........................20 15 GAS VALVE AND CONTROLS..................21 16 TYPICAL GAS VALVE ........................22 17 PROPER FLAME ADJUSTMENT................22 18 TYPICAL FLAME APPEARANCE ................ 23 19 BELT ADJUSTMENT.........................23 20 PRESSURE DROP...........................24 21 TYPICAL FLUE BAFFLE INSTALLATION .........26 LIST OF TABLES Tbl. # Pg. # 1 PRODUCT NOMENCLATURE .................... 3 2 UNIT APPLICATION DATA ......................4 3 CONTROL WIRE SIZES.........................8 4 GAS HEAT APPLICATION DATA ................. 9 5 PIPE SIZING.................................10 6 PHYSICAL DATA.............................13 7 DHG VOLTAGE LIMITATIONS ..................13 8 MINIMUM CLEARANCES ......................13 9 DHG ELECTRICAL DATA ......................13 10UTILITIES ENTRY ............................15 11 DHG 15T SUPPLY AIR BLOWER PERFORMANCE . . 16 12DHG 20T SUPPLY AIR BLOWER PERFORMANCE . . 17 13STATIC RESISTANCES........................18 14POWER EXHAUST PERFORMANCE.............18 15BLOWER MOTOR AND DRIVE DATA.............18 16LIMIT CONTROL SETTING .....................21 17HEAT ANTICIPATOR SETPOINT ................21 18GAS RATE - CUBIC FEET PER HOUR............24 2 Unitary Products 035-17233-000-C-0702 D 1 HG 180 E 180 25 EC TABLE 1: PRODUCT NOMENCLATURE Model # Model Number Description Options D Product Category D = Air Cond., Single Package 1 Product Generation 1 = 1st Generation HG Product Identifier HG = Gas/Electric 180 Nominal Cooling Capacity 180 = 15 Tons 240 = 20 Tons E Factory Installed Heat A = No Heat E = Electric Heat N = Natural Gas 018 Nominal Heating Capacity 018 = 18 kW 036 = 36 kW 054 = 54 kW 072 = 72 kW 25 Voltage Code 25 = 208/230-3-60 58 = 575-3-60 46 = 460-3-60 E...
Este manual também é adequado para os modelos :Aparelhos de ar condicionado - DHG240 (418.64 kb)