www.sylvane.com 1-800-934-9194

NOTES

—Replacement of the refrigeration cycle.

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

Install a valve for the recovery, before venting the Freon, remove the valve when finished.

2.After discharging the unit completely, remove the desired component, and unbraze 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. 17A.

2)Start the vacuum pump, slowly open manifold valves A and B with two full turns counterclockwise and leave the valves closed. The vacuum pump is now pulling through valves A and B up to valve C by means of the manifold and entire system.

CAUTION

If high vacuum equipment is used, just crack valves A and B for a few minutes, then open slowly with the two full turns counterclockwise. This will keep oil from foaming and being drawn into the vacuum 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 system. With valves A and B closed, stop the vacuum pump.

4)Remove the hose from the vacuum pump and place it on the charging cylinder. See Fig. 17B. 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. 17B. 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, and 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 39 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 cutter, 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 for leakage add the pinch-off connection.

— 15—

Page 14 Page 16
Page 15
Image 15
Friedrich US10C30, US12C30, US12C10, US14C30, US10C10, US08C10 manual
Page 14 Page 16

US10C10, US10C30, US12C30, US14C30, US08C10 specifications

The Friedrich US12C10, US08C10, US14C30, US12C30, and US10C30 are advanced ductless mini-split air conditioning systems designed to bring comfort and efficiency to both residential and commercial spaces. Renowned for their reliability and innovative technology, these units stand out in the HVAC market due to their robust features and user-friendly operations.

Key features of the Friedrich US series include a customizable temperature control system that allows users to maintain ideal comfort levels in various environments. With cooling capacities that range from 8,000 to 14,000 BTUs, these units cater to different room sizes and usage requirements. The variable-speed inverter technology employed in these systems ensures energy-efficient operation, allowing for precise temperature regulation while minimizing energy consumption.

Friedrich's intelligent design also incorporates advanced air filtration systems. These filters capture dust, allergens, and other airborne particles, improving indoor air quality and promoting a healthier living environment. The washable filters are easy to maintain, making them a practical choice for users looking to reduce upkeep costs.

Another standout feature of the US series is the quiet operation mode. The units are engineered for low noise levels, allowing for comfortable use in bedrooms, offices, and other noise-sensitive areas. This quiet performance makes the Friedrich US models an ideal choice for users prioritizing tranquility while enjoying effective cooling.

The units are equipped with a smart control system, enabling users to adjust settings through a remote control or a mobile app, enhancing convenience and accessibility. Some models even offer Wi-Fi capabilities, allowing for remote operation and monitoring. This smart technology not only simplifies usage but also enables users to manage energy consumption effectively.

Moreover, the Friedrich US series is built with durability and longevity in mind. Constructed with high-quality materials, these units are designed to withstand various environmental conditions, ensuring lasting performance.

In summary, the Friedrich US12C10, US08C10, US14C30, US12C30, and US10C30 models are leading choices for ductless cooling solutions, offering a blend of efficiency, comfort, and ease of use, making them a top pick among consumers seeking reliable air conditioning options.
Top Page Image Contents