International comfort products PHN524 Скачать руководство пользователя страница 8

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Gask et around

outer edge

Insulated

deck

pan

Gask et around

duct

S/A

R/A

HVAC

unit

base

*Gask eting

outer flange

Flashing field

supplied

Roofing material

field supplied

Cant str ip

field supplied

*Provided with roofcurb

Roof

Duct wo rk

field supplied

Insulation (field

supplied)

Roofcurb*

Wood nailer*

Gask eting

inner flange*

Scre w

(NO TE A)

Roof Curb for Small Cabinet

Note A: When unit mounting scre w is used

retainer bra cke t must also be used.

HVAC unit

base

*Gask eting

outer flange

Flashing field

supplied

Roofing material

field supplied

Cant str ip

field supplied

*Provided with roofcurb

Roof

Duct wo rk

field supplied

Insulation (field

supplied)

Roofcurb*

Wood nailer*

Gask eting

inner flange*

Scre w

(NOTE A)

Roof Curb for

Large Cabinet

Note A: When unit mounting scre w is used

retainer bra cket

must also be used.

B Typ.

Supply opening

(B x C)

Long

Support

Return opening

(B X C)

Insulated

deck pan

Short

Support

C Typ.

FIGURE 5

Roof Curb Dimensiona

Model

PHN5

MODEL NUMBER

IN. [MM]

NPRFCURB006A00

8 [203]

11 [279]

16--1/2 [419]

28--3/4 [730]

30--3/8 [771]

44--5/16 [1126]

45--15/16 [1167]

NPRFCURB007A00

14 [356]

11 [279]

16--1/2 [419]

28--3/4 [730]

30--3/8 [771]

44--5/16 [1126]

45--15/16 [1167]

36--60

NPRFCURB008A00

8 [203]

16--3/16 [411]

17--3/8 [441] 40--1/4 [1022]

41--15/16 [1065]

44--7/16 [1129]

46--1/16 [1169]

NPRFCURB009A00

14 [356]

16--3/16 [411]

17--3/8 [441] 40--1/4 [1022]

41--15/16 [1065]

44--7/16 [1129]

46--1/16 [1169]

Notes:

Roof curb must be set up for unit being installed.

Seal strip must be applied as required to unit being installed.

Roof curb is made of 16 gauge steel.

Attach ductwork to curb (flanges of duct rest on curb).

Insulated panels: 1---in. (25.4mm) thick fiberglass 1 lb. density.

When unit mounting screw is used (see Note A), a retainer bracket must be used as well. This bracket must also be used when required by
code for hurricane or seismic conditions. This bracket is available through Micrometl.

Содержание PHN524

Страница 1: ...heaters Installation 10 Sequence of Operation 11 PRE START UP 14 START UP 14 Checking Cooling Heating Control Operation 14 Check for Refrigerant Leaks 14 Start Up Adjustments 15 Checking Adjusting Refrigerant Charge 15 Indoor Airflow Airflow Adjustments 15 Continuous Fan Operation 16 Defrost Control 17 Quiet Shift 17 Defrost 17 MAINTENANCE 17 Air Filter 18 Indoor Blower and Motor 18 Outdoor Coil I...

Страница 2: ...ning could result in personal injury or death Before installing or servicing system turn off power supply to the unit and install lockout tag There may be more than one disconnect switch Turn off accessory heater power switch if applicable WARNING INTRODUCTION This packaged heat pump unit is fully self contained and designed for outdoor installation see Fig 1 See Fig 3 and 4 for unit dimensions Al...

Страница 3: ...e Unit Rigging and handling of this equipment can be hazardous for many reasons due to the installation location roofs elevated structures etc Only trained qualified crane operators and ground support staff should handle and install this equipment When working with this equipment observe precautions in the literature on tags stickers and labels attached to the equipment and any other safety precau...

Страница 4: ...p of brackets down approximately 30 degrees from the corner posts 2 Attach straps of equal length to the rigging brackets at opposite ends of the unit Be sure straps are rated to hold the weight of the unit See Fig 2 3 Attach a clevis of sufficient strength in the middle of the straps Adjust the clevis location to ensure unit is lifted level with the ground 4 After unit is securely in place detach...

Страница 5: ...5 FIGURE 3 PHN524 DIMENSIONS ...

Страница 6: ...6 FIGURE 4 PHN536 60 DIMENSIONS ...

Страница 7: ...r rack installed in the return air side of the unit Recommended sizes for filters are shown in Table 1 2 Avoid abrupt duct size increases and reductions Abrupt change in duct size adversely affects air performance IMPORTANT Use flexible transitions between ductwork and unit to prevent transmission of vibration Use suitable gaskets to ensure weather tight and airtight seal When electric heat is ins...

Страница 8: ...opening B X C Insulate d deck pan Short Support CTyp G E F G D E FIGURE 5 Roof Curb Dimensiona F Model PHN5 MODEL NUMBER A IN MM B IN MM C IN MM D IN MM E IN MM F IN MM G IN MM 24 NPRFCURB006A00 8 203 11 279 16 1 2 419 28 3 4 730 30 3 8 771 44 5 16 1126 45 15 16 1167 NPRFCURB007A00 14 356 11 279 16 1 2 419 28 3 4 730 30 3 8 771 44 5 16 1126 45 15 16 1167 36 60 NPRFCURB008A00 8 203 16 3 16 411 17 3...

Страница 9: ...ion to ensure proper drainage Condensate trap is available as an accessory or is field supplied Make sure that the outlet of the trap is at least 1 in 25 mm lower than the unit drain pan condensate connection to prevent the pan from overflowing Connect a drain trough using a minimum of field supplied 3 4 in 19 mm PVC or field supplied 3 4 in 19 mm copper pipe at outlet end of the 2 in 51 mm trap S...

Страница 10: ...ove black wire from transformer 3 16 in terminal marked 230 to terminal marked 208 This retaps transformer to primary voltage of 208 vac WARNING CONTROL VOLTAGE CONNECTIONS NOTE Do not use any type of power stealing thermostat Unit control problems may result Use no 18 American Wire Gage AWG color coded insulated 35 C minimum wires to make the controlvoltage connections between the thermostat and ...

Страница 11: ... UNIT SIZE PHN524 PHN536 PHN548 PHN560 NOMINAL CAPACITY ton 2 3 4 5 OPERATING WEIGHT lb kg 405 184 464 210 492 223 535 256 COMPRESSOR TYPE TWO STAGE SCROLL COMPRESSOR Refrigerant R 410A Quantity lb Quantity kg 10 3 4 67 9 7 3 99 15 5 7 03 16 0 7 3 EXPANSION DEVICE HEATING FIXED ORIFICE ORIFICE OD in Left 0 042 0 035 0 038 0 046 ORIFICE OD in Right N A 0 035 0 046 0 046 EXPANSION DEVICE COOLING TXV...

Страница 12: ...12 FIGURE 9 Typical Installation FIGURE 10 PHN5 With Duct Covers On FIGURE 11 Condensate Drain 1 25 mm MIN 2 51 mm MIN TRAP OUTLET Duct Covers ...

Страница 13: ...13 FIGURE 12 PHN524 60 208 230 1 60 Wiring Diagram ...

Страница 14: ... are filled with water to ensure proper drainage d Make sure that all tools and miscellaneous loose parts have been removed 5 Each unit system has two 2 Schrader type ports one low side Schrader fitting located on the suction line and one high side Schrader fitting located on the compressor discharge line Be sure that caps on the ports are tight START UP Step 1 CHECK COOLING AND HEATING OPERATION ...

Страница 15: ...ion low side pressure psig for reference only 5 Using Cooling Charging Charts compare outdoor air temperature F C db with the discharge line pressure psig to determine desired system operating liquid line temperature See Fig 18 6 Compare actual liquid line temperature with desired liquid line temperature Using a tolerance of 2 F 1 1 C add refrigerant if actual temperature is more than 2 F 1 1 C hi...

Страница 16: ...is the same as high stage cooling fan speed Continuous Fan Operation The continuous fan operates at the same fan speed as low stage cooling fan operation FIGURE 13 Typical Heat Pump Operation Cooling Mode COMPRESSOR ACCUMULATOR OUTDOOR COIL INDOOR COIL LCS LEGEND HPS High Pressure Switch LCS Loss of Charge Switch Accurater Metering Device Arrow indicates direction of flow Metering Position Bypass ...

Страница 17: ...FF position a normal and complete defrost cycle will be observed If defrost thermostat is in open position and speedup pins are shorted with a flat head screw driver for 5 sec and released a short defrost cycle will be observed actual length is dependent upon the selected Quiet Shift position When Quiet Shift switch is in ON position the length of defrost is 1 minute 30 sec compressor off period f...

Страница 18: ... SHOCK HAZARD Failure to follow this warning could result in personal injury or death Disconnect and tag electrical power to the unit before cleaning the blower motor and wheel WARNING To clean the blower motor and wheel 1 Remove and disassemble blower assembly as follows a Remove unit access panel b Disconnect 5 pin plug and 4 pin plug from indoor blower motor c On all units remove blower assembl...

Страница 19: ...coil pressure drop to obtain external static pressure available for ducting Table 5 PHN5 Wet Coil Pressure Drop in W C UNIT SIZE STANDARD CFM S C F M 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 024 0 06 0 07 0 08 0 09 0 1 030 0 12 0 15 0 19 0 23 0 27 036 0 07 0 11 0 18 0 26 0 35 042 0 04 0 07 0 1 0 15 0 21 048 0 11 0 14 0 17 0 22 0 28 060 0 1 0 17 0 23 0 31 0 36 Table 6 ...

Страница 20: ...oils with a mild detergent and water solution Rinse coils with clear water using a garden hose Be careful not to splash water on motors insulation wiring or air filter s For best results spray condenser coil fins from inside to outside the unit On units with an outer and inner condenser coil be sure to clean between the coils Be sure to flush all dirt and debris from the unit base Inspect the drai...

Страница 21: ...r tightness Tighten all screw connections If any discolored or burned connections are noticed disassemble the connection clean all the parts restrip the wire end and reassemble the connection properly and securely After inspecting the electrical controls and wiring replace all the panels Start the unit and observe at least one complete cooling cycle to ensure proper operation If discrepancies are ...

Страница 22: ...be caused by a dirty outdoor coil failed fan motor or outdoor air recirculation To check switch 1 Turn off all power to unit 2 Disconnect leads on switch 3 Apply ohm meter leads across switch You should have continuity on a good switch Step 11 Copeland Scroll Compressor R 410A Refrigerant The compressor used in this product is specifically designed to operate with R 410A refrigerant and cannot be ...

Страница 23: ...er from the system Heat from unsweating will release moisture and contaminants from drier into system R 410A Refrigerant Charging Refer to unit information plate and charging chart Some R 410A refrigerant cylinders contain a dip tube to allow liquid refrigerant to flow from cylinder in upright position For cylinders equipped with a dip tube charge R 410A units with cylinder in upright position and...

Страница 24: ...r driers with rated working pressures less than 600 psig S Do not leave R 410A suction line filter driers in line longer than 72 hours S Do not install a suction line filter drier in liquid line S POE oils absorb moisture rapidly Do not expose oil to atmosphere S POE oils may cause damage to certain plastics and roofing materials S Wrap all filter driers and service valves with wet cloth when braz...

Страница 25: ...citor Replace Restriction in refrigerant system Locate restriction and remove Compressor operates continuously Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size Thermostat set too low Reset thermostat Low refrigerant charge Locate leak repair and recharge Mechanical damage in compressor Replace compressor Air in system Recover refrigerant evacuate system ...

Страница 26: ...OUSING ORIFICE AND SETSCREW TIGHTNESS III START UP ELECTRICAL SUPPLY VOLTAGE __________________________________ COMPRESSOR AMPS_________________________________ INDOOR EVAPORATOR FAN AMPS___________ TEMPERATURES OUTDOOR CONDENSER AIR TEMPERATURE ___________DB RETURN AIR TEMPERATURE ___________DB ___________WB COOLING SUPPLY AIR ___________DB ___________WB HEAT PUMP SUPPLY AIR ___________ GAS HEAT ...

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