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12

START UP & ADJUSTMENTS

Pre-Start Check List

  Verify the unit is level and allows condensate to drain.

  Verify the outdoor coil and top of the unit are free from 

obstructions and debris, and all equipment access/
control panels are in place.

  Verify that the duct work is sealed to prevent air leakage. 

  Verify that the line voltage power leads are securely 

connected and the unit is properly grounded.

    Verify that the low voltage wires are securely connected 

to the correct leads on the low voltage terminal strip.

  Verify that the power supply branch circuit overcurrent 

protection is sized properly.

  Verify that the thermostat is wired correctly.

Start-Up Procedures

 WARNING:

This unit is equipped with a crankcase heater. 
Allow 24 hours prior to continuing the start up 
procedures to allow for heating of the refrigerant 
compressor crankcase. Failure to comply may 
result in damage and could cause premature 
failure of the system. This warning should be 
followed at initial start up and any time the power 
has been removed for 12 hours or longer.

The thermostat function switch should be set to OFF and 
the thermostat fan switch should be set to AUTO. Close 
all electrical disconnects to energize the system.

Air Circulation - Indoor Blower
1.  Set the thermostat system mode on OFF and the fan 

mode to ON.

2.  Verify the blower runs continuously. Check the air 

delivery at the supply registers and adjust register 
openings for balanced air distribution. If insuffi cient 
air is detected, examine ductwork for leaks or 
obstructions.

3.  Set the thermostat fan mode to AUTO and verify the 

blower stops running.

NOTE:

 On 3 phase air handler models only - If blower 

is spinning opposite of arrow direction, shut off the 
main power to the unit and switch any two fi eld wires 
at the disconnect. 

DO NOT alter unit wiring.

Short Cycle Protection
1.  Set the thermostat system mode to COOL. Note the 

temperature setting of the thermostat and gradually 
raise the set-point temperature until the unit de-
energizes.

2.  Immediately lower the set point temperature of the 

thermostat to its original setting and verify that the 
indoor blower is energized and outdoor unit remains 
de-energized.

3.  After approximately 5 minutes, verify the compressor 

and fan energize and the temperature of the discharge 
air is cooler than the room temperature.

System Cooling
1.  Set the thermostat’s system mode to COOL and the 

fan mode to AUTO. Gradually lower the thermostat 
temperature setpoint below room temperature and 
verify the outdoor unit and indoor blower energize.

2.  Verify blower wheel is spinning in direction indicated 

by arrow. Feel the air being circulated by the indoor 
blower and verify that it is cooler than ambient 
temperature. Listen for any unusual noises. If unusual 
sounds occur, determine the source of the noise and 
correct as necessary.

3.  Verify HI and LO refrigerant pressures.

 

NOTE: 

If refrigerant pressures are abnormal and 

the compressor is rotating backwards, shut off main 
power to the unit and switch any two fi eld wires at 
the disconnect. 

DO NOT alter unit wiring.

4.  Allow the system to operate for several minutes 

and then set the temperature selector above room 
temperature. Verify the fan and compressor cycle off 
with the thermostat. 

NOTE: 

The blower should also 

stop unless fan switch is set to the ON position.

System Heating
1.  Set the thermostat's system mode to HEAT and the 

temperature mode to below room temperature.

2.  Verify the outdoor unit and indoor fan stop running. 

After 5 minutes, increase the temperature on the 
thermostat to it's maximum setting.

3.  Verify the outdoor unit and indoor blower energize. 

Feel the air being circulated by the indoor blower and 
verify that it is warmer than ambient temperature. 
Listen for any unusual noises. If unusual sounds 
occur, determine the source of the noise and correct 
as necessary.

Refrigerant Charging

 WARNING:

T5BP Split System Heat Pumps leave the factory 
with a 90 oz. (5.63 Lbs.) R410A refrigerant holding 
charge. Follow these charging instructions for 
maximum unit performance and effi ciency. Some 
local codes require licensed installation/service 
personnel to service this type of equipment. 
Refrigerant charging must be done by qualifi ed 
personnel familiar with safe and environmentally 
responsible refrigerant handling procedures. 
Under no circumstances should the owner 
attempt to install and/or service this equipment. 
Failure to comply with this warning could result 
in property damage, personal injury, or death.

Содержание T5BP 090C

Страница 1: ...nate your problem call your servicing contractor These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this appliance Some local codes req...

Страница 2: ...2...

Страница 3: ...enance 13 Replacement Parts 13 Component Functions 14 Figures Tables 14 Figure 5 T5BP Heat Pump Dimensions 14 Table 3 Unit Dimensions Shipping Weights 14 Electrical Information 15 Table 4 Electrical S...

Страница 4: ...de to COOL or AUTO and change the fan mode to AUTO See Figure 1 2 Set the temperature selector to the desired temperature level The outdoor fan compressor and blower motor will all cycle on and off to...

Страница 5: ...al power to the unit is turned on WARRANTY INFORMATION A warranty certificate with full details is included with the heat pump Carefully review these responsibilities with your dealer or service compa...

Страница 6: ...refrigerant in this unit Use of another refrigerant will damage the unit WARNING The information listed below must be followed during the installation service and operation of this unit Unqualified in...

Страница 7: ...econsultyourdealerformaintenanceinformation and availability of maintenance contracts Please read all instructions before installing the unit Locating the Heat Pump Survey the job site to determine th...

Страница 8: ...required a copper tubing bender is recommended Avoid sharp bends and contact of the refrigerant lines with metal surfaces A filter dryer is provided with the unit and must be installedintheliquidlineo...

Страница 9: ...sk of electrical shock personal injury or death disconnect all electrical power to the unit before performing any maintenance or service The unit may have more than one electrical supply Label all wir...

Страница 10: ...mostats can be used withthisequipmentdependingonoptionalaccessories i e economizer installed with the unit Select a thermostatthatoperatesinconjunctionwiththeinstalled accessories A typical commercial...

Страница 11: ...ch from delay to no delay remove the pin from the delay pin location and move it to the no delay pin location Scroll compressors that have noise issues while going into or coming out of defrost should...

Страница 12: ...outdoor unit remains de energized 3 After approximately 5 minutes verify the compressor andfanenergizeandthetemperatureofthedischarge air is cooler than the room temperature System Cooling 1 Set the...

Страница 13: ...d in Step 1 is greater than therequiredliquidrefrigerantpressuredeterminedin Step 3 then there is too much charge in the system Remove refrigerant and repeat Steps 1 through 3 until the system is corr...

Страница 14: ...low 6 Minimum Clearance FIGURES TABLES Model Number T5BP Unit Weights Lbs Height H Width W Depth D Shipping Height Without Packaging Shipping Weight All dimensions in inches 090C 390 424 44 1 4 37 1 2...

Страница 15: ...1 7 Fan Blade Diameter Pitch Blades 30 22 3 30 22 3 30 26 3 30 26 3 RPM CFM Max Total 850 7 200 850 7 200 850 8 000 850 8 000 PHYSICAL DATA REFRIGERANT SPECS Outdoor Coil Assembly 1 ea 1 ea 1 ea 1 ea...

Страница 16: ...r run time is accumulated Opening of DFT during defrost or interval period resets the interval to 0 5 Ground on location provided inside compressor terminal box CC Contactor Coil CCH Crankcase Heat DF...

Страница 17: ...ED RED WHITE BLUE VIO 14 GRN 18 GRN 18 RED 12 GRY 12 BLK 12 BLU 12 BLK 12 BLACK BLACK GREEN BROWN SINGLE STAGE HEAT PUMP THERMOSTAT SEE NOTE 1 SEE NOTE 2 SEE NOTE 4 SEE NOTE 5 SEE NOTE 3 G Y E R O B W...

Страница 18: ...or a variety of indoor return air conditions and are most influenced by the outdoor ambient temperature outdoor fan operation and the unit operating voltage Before using these charts make sure the uni...

Страница 19: ...efrigerant when above curve Add refrigerant when below curve Figure 8 Charging Chart for 7 5 Ton Units Figure 9 Charging Chart for 10 Ton Units Liquid Temperature F Liquid Pressure psig 175 200 225 25...

Страница 20: ...n the charge to the amount shown on the rating label However if an inspection with these verification charts does not line up with the values shown and the ambient temperature is above 50 F then a mor...

Страница 21: ...e psig T5BP 120 Heat Mode Verification Chart 80 ID Rtn 70 ID Rtn 60 ID Rtn 62 OD Amb 47 OD Amb 17 OD Amb Figure 10 Verification Chart for 7 1 2 ton units Liquid Temperature F Liquid Pressure psig T5BP...

Страница 22: ...22...

Страница 23: ...23...

Страница 24: ...___________________________ UnitInstalledMinimumclearancesper Figure 2 page 7 YES NO INSTALLER NAME CITY _______________________ STATE ________________ ELECTRICAL SYSTEM Electrical connections tight Y...

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