Heat Controller R-410A installation instructions Charging Hints

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TABLE 5

Thermostat Load - Amps

FIELD WIRE SIZE FOR 24 VOLT THERMOSTAT CIRCUITS

 

 

SOLID COPPER WIRE - AWG

 

3.0

16

14

12

10

10

10

2.5

16

14

12

12

10

10

2.0

18

16

14

12

12

10

 

50

100

150

200

250

300

 

 

Length of Run - Feet (1)

 

 

 

 

 

 

 

 

(1) Wire length equals twice the run distance.

NOTE: The condensing unit is shipped with a holding charge of dry nitrogen which must be purged from the unit before evacuation.

1.Since the condensing unit itself must be evacuated, open the suction, discharge and liquid shut-off valves.

2.Use a refrigeration type vacuum pump capable of evacuation in the 500 micron range.

3.Connect the vacuum pump to the service manifold assembly with a pressure gauge that will read 30 inches vacuum. Connect the service manifold to the suction line schrader valve port.

4.With an accurate scale, 1⁄2 oz., set refrigerant tank up so its weight can be measured while in a position to charge liquid. (Unit must be off.) Energize liquid line solenoid valve by wiring valve to 24V power supply (or open by manual stem if applicable).

5.Connect to the liquid shut-off valve port. Shut off tank and evacuate the system. The pressure gauge should read at least 29.5" of vacuum.

6.Triple evacuate the system.

7.The refrigerant system will now be free of noncondensables.

8.Remove vacuum pump from 3-way valve.

9.Before tightening, purge tank and service valve hose.

CHARGING HINTS

SYMPTOM

POSSIBLE CAUSE

REMEDY

 

 

 

High head pressure

a. Air flow to or from condenser restricted or

a. Remove obstruction, relocate condensing unit,

 

dirty condenser

if necessary clean condenser.

 

b. Faulty condenser fan or motor.

b. Replace.

 

c. Overcharge of refrigerant

c. Reduce charge.

 

d. Air in system.

d. Evacuate and recharge.

Low head pressure

a. Short of refrigerant.

a. Check for leak, add charge.

 

b. Low evaporator air flow.

b. Increase blower speed, check filters.

Low vapor &

a. Short of refrigerant.

a. Check for leak—add refrigerant.

hot compressor

 

 

Excessive sweating

a. Low indoor airflow

a. Increase speed of air handler blower or reduce

 

 

restriction—replace air filter.

 

b. Excess refrigerant

b. Slowly reduce charge.

10.Note weight of refrigerant tank.

11.De-energize liquid line solenoid valve. Open refrigerant tank valve. Allow pressure in tank and unit to equalize.

12.Close off service valve to liquid port and note weight of refrigerant tank.

13.Re-wire liquid line solenoid to thermostat control. Close main disconnect switch and turn thermostat to lowest setting.

14.Charge unit per chart.

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Contents Heatcontroller Table of Contents Safety Information III. Checking Product Received II. IntroductionIV. Equipment Protection from the Environment WHY USE AN AIR Cooled Split SYSTEM? VI. Standard Unit Features 61⁄2 and 71⁄2 Important Message to Owner VII. InstallationInspection and Handling Installation General Rooftop Installation Refer to FigureSlab Installation Order PartsVIII. Refrigerant Piping Data Installation of Piping Typical Piping Recommendations Refrigerant Piping Feet VIX. Wiring Electrical Power XI. Power WiringXII. Wire Routing XV. Leak TestingXVI. R-410A Refrigerant Specification of R-410AQuick Reference Guide for R-410A XVII. Evacuation and Charging Replacement UnitsEvaporator Coil Charging Hints ANTI-SHORT Cycle Timer XIX. AccessoriesXVIII. Sequence of Operation 61⁄2 and 71⁄2 TON Liquid Pressure Control Sight Glass / Moisture IndicatorLiquid Line Solenoid Valve XX. Miscellaneous Charge Charts61⁄2 TON Condenser 155 160 165 71⁄2 TON Condenser with 10 TON EvaporatorMaintenance and Operation High Pressure Switch HPCLOW Pressure Switch LPC ContactorTroubleshooting Filter
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R-410A specifications

The Heat Controller R-410A is an advanced refrigerant used in various heating and cooling applications, particularly in residential and commercial air conditioning systems. Recognized for its efficiency and eco-friendliness, R-410A has become a popular choice among HVAC manufacturers and professionals.

One of the main features of R-410A is its high efficiency. It operates at a higher pressure than traditional refrigerants, which allows it to transfer heat more effectively. This results in improved energy efficiency ratings (SEER and EER) for systems utilizing R-410A, leading to lower energy bills and reduced environmental impact.

R-410A is also known for its environmental sustainability. Unlike its predecessor, R-22, R-410A has zero ozone depletion potential (ODP) due to its composition of hydrofluorocarbons (HFCs). Although it does have a global warming potential (GWP), the advancements in technology have made R-410A a more environmentally friendly option compared to many older refrigerants.

Developed through innovative technological advancements, R-410A systems often incorporate variable speed compressors and efficient heat exchangers. These technologies allow for better modulation of cooling and heating outputs, ensuring that the indoor environment remains comfortable while using the least amount of energy possible.

Another significant characteristic of R-410A is its compatibility with a wide range of HVAC equipment. Many new air conditioning systems are designed specifically to use R-410A, which has led to the creation of a robust market for these units. Additionally, R-410A systems tend to require less maintenance and have longer lifespans compared to those using older refrigerants.

Safety is another consideration for R-410A users. While R-410A is non-toxic and non-flammable, technicians who work with this refrigerant need to be trained and certified due to its high-pressure properties. Proper handling and installation are crucial to ensure system efficiency and reliability.

In summary, the Heat Controller R-410A stands out in the HVAC industry for its efficiency, environmental benefits, advanced technologies, and compatibility with modern systems. As the industry continues to evolve, R-410A remains a key player, paving the way towards more sustainable and efficient heating and cooling solutions.
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