Trane Heat Pump DC UC WEB01 User Manual

Owner's Guide  
Packaged Systems or All-in-One:  
Heat Pumps  
Air Conditioners  
Dual Fuel  
Gas / Electric  
DC-UC-WEB01  
 
Safety Section – Dual Fuel and Gas/Electric Systems  
General Information  
Understand the signal words DANGER, WARNING, and  
CAUTION. These words are safety alert words. DANGER  
indicates the most serious hazards which will result in severe  
personal injury or death. WARNING indicates hazards which  
could result in personal injury or death. CAUTION is used to  
indicate unsafe practices which could result in minor injury or  
property damage.  
When AUTO is selected, the fan will only operate as required  
during the heating or cooling cycles. The fan mode can be  
used to operate the indoor fan continuously by selecting ON.  
Continuous fan mode during cooling operation may not be  
appropriate in humid climates. If the indoor air exceeds 60%  
relative humidity or simply feels uncomfortably humid, it is  
recommended that the fan only be used in the AUTO mode.  
To ensure that the thermostat operates properly, it must be  
level and positioned to avoid the influence of such external  
heat sources as lamps, televisions or other heat-producing  
appliances.  
Overview  
Your combination dual fuel heating/electric cooling unit is  
designed to provide comfort all year long with safe, efficient,  
trouble-free operation. It is important that you understand how  
to operate and maintain your unit to keep it operating safely  
and efficiently. This guide will acquaint you with these important  
procedures. Familiarize yourself with this manual and store it in  
a convenient location for future reference.  
Remember these instructions at all times:  
• Never perform any maintenance procedures until  
the electrical power to the unit is turned off.  
• Never perform any maintenance procedures until the  
gas valve in the gas supply line is turned off.  
Any additions, changes, or conversions required in order for  
the unit to satisfactorily meet the application needs, should  
be made by a qualified product distributor or local dealer,  
using factory specified and approved parts. See Figure 1 for  
component layout.  
• Never remove any panel from the unit while it is operating.  
• Never remove panels or parts from the unit that  
are not discussed in this guide.  
• Never cover the unit since it is designed to operate  
year round.  
• Never store anything flammable or combustible  
around or near the unit.  
Your unit is of complex design. To ensure that it performs safely  
and gives long-lasting service, some of the maintenance work  
must be performed by a qualified service technician.  
When a service technician is referred to in this manual, it is  
describing a service technician that has had special training  
or a number of years experience in servicing this type of  
equipment. It is your responsibility to select a qualified service  
company that can provide a service technician of this caliber.  
Compressor  
Heat  
Exchangers  
Indoor  
Blower  
Motor  
Gas Valve  
Two Stage Cooling Models – For units with the feature of two  
staged cooling, the thermostat will determine whether to run  
the system at the full capacity or a lower capacity. This depends  
on the daily cooling load of the conditioned space. The system is  
more efficient when running at low capacity (1st stage). At lower  
outdoor temperatures 1st stage will be sufficient to maintain  
indoor comfort.  
Burners  
Note: Depending on furnace size,  
your unit may have 1, 2, or 3 burners.  
Figure 1. Component Layout  
Thermostat  
Room thermostats are delicate temperature-sensing controls.  
Their main function is to energize and de-energize the heating  
or cooling circuit to maintain the temperature setting you select.  
With the thermostat set to COOL, the system will automatically  
cycle on and off as well as from low (1st stage) to high (2nd  
stage) as needed to maintain the thermostat set point for indoor  
comfort. During 1st stage operation the compressor, as well  
as the indoor fan, will run at a reduced speed. This produces a  
reduced capacity which is more efficient than the high capacity  
2nd stage. If the low capacity (1st stage) is not sufficient to  
maintain the thermostat setting, the system will switch to high  
speed (2nd stage). As the thermostat temperature setting is  
reached, the system will cycle to low speed then off.  
Many thermostats contain a room thermometer to indicate the  
approximate room temperature, and a temperature scale to  
select the desired indoor air temperature. In addition, most  
thermostats have modes of HEAT, OFF and COOL, and fan  
modes of ON and AUTO.  
When OFF is selected your unit will not operate in either  
heat or cool modes. If HEAT or COOL is selected, the unit  
will automatically cycle on and off to maintain the desired  
temperature settings.  
3
DC-UC-WEB01  
 
Regular Owner Maintenance – All Packaged Systems  
Note: It may be necessary to replace permanent filters annually  
if washing fails to clean the filter, or if the filter shows signs of  
deterioration. Be sure to use the same type and size as was  
originally installed.  
Never use combustible cleaning fluids on any part of the furnace.  
You can perform some of the periodic maintenance functions for  
the unit yourself; this includes replacing (disposable) or cleaning  
(permanent) the air filters, cleaning the cabinet, cleaning the  
condenser coil, and conducting a general unit inspection on a  
regular basis.  
Unit Cabinet  
Even though the unit cabinet is designed to withstand exposure  
to outdoor weather, you can extend the life of the cabinet panel  
by cleaning and waxing it twice each year. Application of a light  
coat of automobile wax is recommended.  
Air Filters  
Condenser Coil  
Unfiltered air circulates through the units condenser coil and can  
cause the coil's surface to become clogged with dust and dirt.  
Have the coils checked by a service technician each cooling season.  
It is very important to keep the central duct system air filters  
clean. Be sure to inspect them at least once each month when  
the system is in constant operation (in new homes, check the  
filters weekly for the first 4 weeks).  
Be sure to keep all vegetation away from the condenser coil area.  
If you have a disposable-type filter replace it with a new filter  
of the same type and size. DO NOT ATTEMPT TO CLEAN  
DISPOSABLE FILTERS.  
General Unit Inspection  
Occasionally check over the unit; look and listen for unusual or  
abnormal operating characteristics. Do not remove any access  
panels. If you suspect your unit is not operating properly, contact  
a service technician for instructions.  
Permanent-type filters can be cleaned by washing them with a  
mild detergent and water. Make sure that the filters are thoroughly  
dry before reinstalling them in the unit (or duct system).  
4
DC-UC-WEB01  
 
Regular Service Maintenance  
For regular dealer maintenance please refer to  
HAZARDOUS GASSES  
Exposure to fuel substances, or by-products of incomplete fuel  
combustion, is believed by the state of California to cause cancer,  
birth defects, or other reproductive harm.  
ELECTRIC SHOCK HAZARD  
To prevent injury or death due to electrical shock or contact  
with moving parts. Lock unit disconnect switch in open  
position before servicing unit.  
This warning complies with State of California law, Proposition 65.  
This product must be gas piped by a Licensed Plumber or Gas  
Fitter in the Commonwealth of Massachusetts.  
Cooling and Heating Season  
4. Visually inspect all of the unit's flue product passageways  
for excessive deposit buildup or corrosion. If buildup or  
corrosion is apparent, perform the necessary repairs.  
Basic Maintenance – For All Packaged Systems  
To keep your unit operating safely and efficiently, a qualified  
service technician should check the entire system seasonally,  
and any other time that you feel a check is needed. Your service  
technician may examine these areas of the unit:  
5. Visually check the main burner flames. They should be bright  
blue flames extending up to the heat exchanger sections.  
1. Filters (for possible cleaning)  
GAS VALVE  
MANUAL  
ON/OFF  
SWITCH  
2. Motors (condenser and evaporator motors are  
permanently lubricated)  
MANIFOLD  
3. Gaskets (for possible replacement)  
4. Refrigerant coils (for possible cleaning)  
5. Safety controls (for mechanical cleaning)  
6. Electrical components and wiring (for possible  
replacement and connection tightness)  
BURNER  
GAS VALVE  
ORIFICE  
7. Condensate drain (for possible cleaning)  
8. Inspect the unit duct connections to see that they are  
physically sound and sealed to the unit casing.  
9. Inspect the unit mounting support to see that it is sound.  
Manual On/Off Switch  
10. Inspect the unit to see that there is no obvious unit  
deterioration.  
Figure 2. Gas Valve with On/Off "Toggle" Switch  
Heating Season Additional Maintenance – For  
Gas/Electric and Dual Fuel Packaged Systems  
At the beginning of each heating season arrange for a qualified  
service technician to complete the unit inspections and service  
routines described in this section.  
ELECTRIC SHOCK HAZARD  
Should overheating occur, or the gas supply fail to shut off, shut  
off the manual gas valve to the furnace before shutting off the  
electrical supply.  
These steps should be performed ONLY by a qualified service  
technician.  
In the event that electrical, fuel or mechanical failures occur, the  
owner should immediately turn off the gas supply at the manual  
gas valve located in the burner compartment and electrical  
power to the furnace and contact service technician.  
1. Inspect the control panel wiring and heating controls to make  
sure connections are tight and wiring insulation is intact.  
2. Check the operation of the gas ignition system.  
a. Turn the unit on and off at the thermostat to be sure  
the ignition control and spark electrode are operating.  
IMPORTANT: Some of these products have been designed  
and manufactured to meet ENERGY STAR criteria for energy  
efficiency. However, proper refrigerant charge and proper  
air flow are critical to achieve rated capacity and efficiency.  
Installation of this product should follow the manufacturer’s  
refrigerant charging and air flow instructions. Failure to confirm  
proper charge and airflow may reduce energy efficiency and  
shorten equipment life.  
b.Turn off the gas supply with the unit operating to  
verify that the gas valve closes and that a re-ignition  
cycle is initiated by the ignition control.  
3. Check the burner manifold pressure. A pressure tap is  
provided in the gas valve for this purpose.  
5
DC-UC-WEB01  
 
Limited Warranty Information  
 
Important Product Information  
Registering your products helps provide you with one of the strongest manufacturer limited warranties available. To register, go to  
the manufacturer’s website or contact your dealer. You will need the serial number, model number, and installation date for each  
product being registered. Your dealer may have included these on your invoice or can provide a list for you to use. Please take a  
few moments to record the following information to ensure your product registration process is quick and easy:  
Packaged Unit Serial Number ______________________________________________________________________________________  
Packaged Unit Model Number _____________________________________________________________________________________  
Date of Installation _______________________________________________________________________________________________  
Dealer __________________________________________________________________________________________________________  
Service Information  
Call your installing dealer if the unit is inoperative. Before you call, always check the following to be sure service is required:  
a. Be sure the main switch that supplies power to the unit is in the ON position.  
b. Replace any burned-out fuses or reset circuit breakers.  
c. Be sure the thermostat is properly set.  
Service Phone ___________________________________________________________________________________________________  
Ingersoll Rand Residential Solutions, a business comprised of well-known brands like Schlage and Trane, delivers  
safety, comfort and efficiency to homeowners throughout North America. Our quality products, services and  
solutions include mechanical and electronic locks, heating and air conditioning systems, indoor air quality  
solutions, advanced controls, portable security systems and remote home management. For more information on  
 

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