UNIT MAINTENANCE

Proper maintenance is most important to achieve the best performance from a air handler. Some of the components and their locations are shown in Figure 13 (page 18). If any component of the air handler must be replaced, use only factory authorized replacement parts specified in the Replacement Parts List provided online.

WARNING:

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could result in serious injury or property damage.

Improper servicing could result in dangerous operation, serious injury, death or property damage.

•Before servicing, disconnect all electrical power to air handler.

•When servicing controls, label all wires prior to disconnecting. Reconnect wires correctly.

•Verify proper operation after servicing.

•These maintenance instructions are primarily intended to assist qualified technicians experienced in the proper maintenance and operation of this appliance.

•Always reinstall the doors on the air handler after servicing or cleaning/changing the filters.Do not operate the air handler without all doors and covers in place.

•Verify that the thermostat is properly installed and is not being affected by drafts or heat from lamps or other appliances.

•To achieve the best performance and minimize equipment failure, it is recommended that a yearly maintenance checkup be performed. At a minimum, this check should include the following items:

Air Filter(s)

HMG**F1E, HMG**X1E & HCG**V1E series air handlers are not supplied with a single air filter when shipped from the factory. It is recommended that the filter be cleaned or replaced monthly. Newly built or recently renovated homes may require more frequent changing until the construction dust has minimized. Filter sizes shown in Table 2 are available at most local retailers.

WARNING:

Never operate the air handler without a filter in place. Dust and lint in the return air can build up on internal components, resulting in loss of efficiency,equipment damage,and possible fire.

Filters designed to remove smaller particles such as pollen, may require additional maintenance.

Furnace Size (BTUH)

Filter Size

 

 

24K & 30K

12 x 20 x 1

36K & 42K

18 x 20 x 1

 

 

48K & 60K

20 x 20 x 1

Table 2. Filter Sizes

Blower Compartment

Dirt and lint can create excessive loads on the motor resulting in higher than normal operating temperatures and shortened service life. It is recommended that the blower compartment be cleaned of dirt or lint that may have accumulated in the compartment or on the blower and motor as part of the annual inspection.

Blower Fan Wheel

Inspect the blower wheel blades for accumulations of dirt and clean if necessary. Inspect mounting nut for tightness when done.

Blower Motor & Assembly

Inspect the blower assembly and motor mounting brackets for tightness and corrosion. Correct deficiencies if necessary. The blower motor contains sealed bearings and under normal operating conditions, no maintenance is necessary for the life of the equipment.

TROUBLESHOOTING

If the air handler fails to operate, check the following:

•Is the electric turned on?

•Is the thermostat operating properly?

•Are the blower compartment door(s) in place?

•Is the air handler disconnect closed?

•Has the circuit breaker tripped or the control board fuse burned open?

•Are any manual reset switches open?

•Is the filter dirty or plugged?

•Is the LED on both control boards constantly ON? If not, refer to Tables 3 or 4 to determine fault condition.

Red LED (AN2)

Diagnostic

 

 

OFF

Control Fault (No Power)

Flash

Blower Fault

ON

Normal Operation

Table 3. Air handler Control Board Fault Conditions

 

Diagnostic

Green

Red

 

LED

LED

 

 

 

Control Fault (No Power)

Off

Off

Fixed

Normal Operation

On

On

Speed

Motor Fault

On

Flash

Furnaces

Twin Fault (no motor fault)

Flash

On

 

Communications Fault

Flash

Flash

Variable

Control Fault (No Power)

Off

Off

Normal Operation

On

On

Speed

Motor Fault

On

Flash

Furnaces

 

 

 

Communications Fault

Flash

Flash

 

Table 4. Motor Control Board Fault Conditions

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Heat Controller HMG**F1E, HMG**X1E, HCG**V1E installation instructions Unit Maintenance, Troubleshooting
Page 15 Page 17

HMG**X1E, HCG**V1E, HMG**F1E specifications

The Heat Controller series, comprising models HMG**F1E, HCG**V1E, and HMG**X1E, showcases advanced heating and cooling technologies designed for optimal comfort and energy efficiency in residential and commercial settings. Each model is equipped with a range of features that cater to diverse user needs while maintaining excellent performance.

The HMG**F1E model stands out with its sleek design and compact size, making it ideal for smaller spaces. It utilizes inverter technology, which enables the unit to operate at variable speeds for greater efficiency and reduced energy consumption. This model also comes with a user-friendly remote control, allowing for easy adjustments of temperature settings and operational modes without the need to manually interact with the unit itself. The HMG**F1E is equipped with a filtration system that improves indoor air quality by removing dust and allergens, providing a more comfortable living environment.

In contrast, the HCG**V1E model is designed with versatility in mind, offering both heating and cooling functions. This unit features a programmable thermostat, allowing users to set their preferred temperatures for different times of the day. The HCG**V1E is manufactured with durable materials that ensure longevity and reliability under various weather conditions. Additionally, it provides whisper-quiet operation, ensuring minimal disturbance to indoor activities. The energy-efficient operation and smart climate control technology contribute to significant savings on energy bills.

Finally, the HMG**X1E model is known for its cutting-edge smart technology integration. This model can be connected to smart home systems, enabling users to control the unit from their smartphones or tablets. It features advanced sensors that detect occupancy and adjust heating and cooling accordingly, optimizing energy usage in real-time. The HMG**X1E also incorporates an eco-friendly refrigerant, aligning with modern environmental standards while delivering exceptional performance.

Overall, the Heat Controller series with models HMG**F1E, HCG**V1E, and HMG**X1E redefine comfort and efficiency. With their combination of innovative technologies, user-friendly features, and sustainable designs, they are perfect for anyone seeking reliable temperature control solutions for their spaces.
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