NOTICE

-Replacement of the refrigeration cycle.

1.When replacing the refrigeration cycle, be sure to discharge the refrigerant system using a FreonTM recovery System.

If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system.

2.After discharging the unit completely, remove the desired component, and unbrace the pinch-off tubes.

3.Solder service valves into the pinch-off tube ports, leaving the valves open.

4.Solder the pinch-off tubes with Service valves.

5.Evacuate as follows.

1)Connect the vacuum pump, as illustrated Fig. 35A.

2)Start the vacuum pump, slowly open manifold valves A and B with two full turns counterclock- wise and leave the valves closed.

The vacuum pump is now pulling through valves A and B up to valve C by means of themanifold and entire system.

CAUTION: If high vacuum equip- ment is used, just crack valves A

and B for a few minutes, then open slowly with the two full turns coun- terclockwise. This will keep oil from foaming and being drawn into the vacu- um pump.

3)Operate the vacuum pump for 20 to 30 minutes, until 600 microns of vacuum is obtained. Close valves A and B, and observe vacuum gauge for a few minutes. A rise in pressure would indicate a possible leak or moisture remaining in the sys- tem. With valves A and B closed, stop the vacu- um pump.

4)Remove the hose from the vacuum pump and place it on the charging cylinder. See Fig. 35B. Open valve C.

Discharge the line at the manifold connection.

5)The system is now ready for final charging.

6.Recharge as follows :

1)Refrigeration cycle systems are charged from the High-side. If the total charge cannot be put in the High-side, the balance will be put in the suction line through the access valve which you installed as the system was opened.

2)Connect the charging cylinder as shown in Fig. 35B.

With valve C open, discharge the hose at the manifold connection.

3)Open valve A and allow the proper charge to enter the system. Valve B is still closed.

4)If more charge is required, the high-side will not take it. Close valve A.

5)With the unit running, open valve B and add the balance of the charge.

a.Do not add the liquid refrigerant to the Low- side.

b.Watch the Low-side gauge; allow pressure to rise to 30 lbs.

c.Turn off valve B and allow pressure to drop.

d.Repeat steps B and C until the balance of the charge is in the system.

6)When satisfied the unit is operating correctly, use the pinch-off tool with the unit still running and clamp on to the pinch-off tube. Using a tube cut- ter, cut the pinch-off tube about 2 inches from the pinch-off tool. Use sil-fos solder and solder pinch- off tube closed. Turn off the unit, allow it to set for a while, and then test the leakage of the pinch-off connection.

Service Manual 20

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Heat Controller REG-183A, REG-243A service manual
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REG-183A, REG-243A specifications

The Heat Controller REG-183A and REG-243A are innovative heating solutions designed to enhance comfort and efficiency in various settings. These models represent the latest advancements in heating technology, providing effective climate control for residential and commercial spaces.

One of the standout features of the REG-183A and REG-243A is their energy efficiency. Both models utilize advanced heat pump technology, which significantly reduces energy consumption compared to traditional heating systems. With their efficient operation, users can expect substantial savings on energy bills while maintaining a cozy environment.

Another key characteristic of these heat controllers is their precise temperature regulation. Equipped with intelligent control systems, the REG-183A and REG-243A can accurately monitor and adjust the indoor climate according to user preferences. The ability to maintain consistent temperatures not only enhances comfort but also contributes to the longevity of the heating system itself.

The REG-183A and REG-243A are designed with user convenience in mind. They feature programmable settings that allow users to customize heating schedules based on their routines. This capability ensures that spaces are warm when needed while conserving energy during unoccupied periods. Additionally, the intuitive control interfaces make it easy for users to navigate settings and make adjustments as necessary.

Durability and reliability are paramount in the design of these heating units. Built with high-quality materials and components, both models are engineered to withstand the rigors of daily use. Their robust construction reduces the likelihood of breakdowns, providing peace of mind to users.

Moreover, the REG-183A and REG-243A are equipped with comprehensive safety features. Automatic shut-off mechanisms and over-temperature protection are integrated to prevent potential hazards, ensuring that users can enjoy warmth without worry.

In terms of aesthetics, these heat controllers have a sleek and modern design that can seamlessly blend into any decor. Their compact size allows for easy installation in various spaces, from homes to offices.

In summary, the Heat Controller REG-183A and REG-243A are designed to deliver efficient, reliable, and user-friendly heating solutions. With their energy-saving technology, precise temperature control, and robust features, they stand out as excellent choices for those looking to enhance their indoor climate control systems. Whether it's for residential comfort or commercial applications, these models offer the perfect balance between performance and efficiency.
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