WARNING: Before Operating Your Unit

WARNING

Electrical Shock Hazard

Make sure your electrical receptacle has the same configuration as your air conditioner’s plug. If different, consult a Licensed Electrician.

Do not use plug adapters.

Do not use an extension cord.

Do not remove ground prong.

Always plug into a grounded 3 prong oulet. Failure to follow these instructions can result in death, fire, or electrical shock.

NOTICE

Do not use the LCDI device as an ON/OFF switch.

Failure to adhere to this precaution may cause premature equipment malfunction.

Once plugged in, the unit will operate normally without the need to reset the LCDI device. If the LCDI device fails to trip when tested or if the power supply cord is damaged, it must be replaced with a new power supply cord from the manufacturer. Contact our Technical Assistance Line at (800) 541-6645. To expedite service, please have your model number available.

Make sure the wiring is adequate for your unit.

If you have fuses, they should be of the time delay type. Before you install or relocate this unit, be sure that the amperage rating of the circuit breaker or time delay fuse does not exceed the amp rating listed in Table 1.

DO NOT use an extension cord.

The cord provided will carry the proper amount of electrical power to the unit; an extension cord may not.

Make sure that the receptacle is compatible with the air conditioner cord plug provided.

Proper grounding must be maintained at all times. Two prong receptacles

The grounded receptacle should meet all national and local codes and ordinances. You must use the three prong plug furnished with the air conditioner. Under no circumstances should you remove the ground prong from the plug.

Test the power cord

Table 1.

 

CIRCUIT RATING

REQUIRED

 

OR TIME DELAY

WALL

MODEL

FUSE

RECEPTACLE

 

AMP

VOLT

NEMA

 

 

 

 

 

 

 

 

 

 

NO.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SS08M10, SS10M10,

 

 

 

 

 

 

 

 

 

 

 

 

SS12M10, SS14M10,

15

125

5-15R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YS10M10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SS12M30, SS15M30,

15

250

6-15R

 

 

 

 

 

 

 

 

 

SM18M30, SM21M30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SL25M30, SL28M30,

 

 

 

 

 

 

 

 

 

 

 

 

ES12M33, ES15M33,

20

250

6-20R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YS12M33

 

 

 

 

 

 

 

 

 

 

 

 

SL36M30, EM18M34,

 

 

 

 

 

 

 

 

 

 

 

 

EL25M35, EL36M35,

30

250

6-30R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YM18M34, YL24M35

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All Friedrich room air conditioners are shipped from the factory with a Leakage Current Detection Interrupter (LCDI) equipped power cord. The LCDI device on the end of the cord meets the UL and NEC requirements for cord connected air conditioners.

To test your power supply cord:

1.Plug power supply cord into a grounded 3 prong outlet.

2.Press RESET (See Figure 1).

3.Press TEST, listen for click; the RESET button trips and pops out.

4.Press and release RESET (Listen for click; RESET button latches and remains in). The power cord is ready for use.

Figure 1

RESET TEST

WARNING

TEST BEFORE EACH USE

1.PRESS RESET BUTTON

2.PLUG LCDI INTO POWER RECEPTACLE

3.PRESS TEST BUTTON, RESET BUTTON SHOULD

POP UP

4.PRESS TEST BUTTON, FOR USE

DO NOT USE IF ABOVE TEST

FAILS

WHEN GREEN LIGHT IS ON

IT IS WORKING PROPERLY

TEST

RESET

WARNING

TEST BEFORE EACH USE

1.PRESS RESET BUTTON

2.PLUG LCDI INTO POWER RECEPTACLE

3.PRESS TEST BUTTON, RESET BUTTON SHOULD POP UP

4.PRESS TEST BUTTON, FOR USE

DO NOT USE IF ABOVE TEST FAILS

WHEN GREEN LIGHT IS ON IT IS WORKING PROPERLY

15/20A LCDI Device

30A LCDI Device

FRR001

10

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Page 11
Image 11
Friedrich R-410A service manual Make sure the wiring is adequate for your unit
Page 10 Page 12

R-410A specifications

Friedrich R-410A is an advanced refrigerant widely used in HVAC (Heating, Ventilation, and Air Conditioning) systems, known for its high efficiency and environmental friendliness. As a hydrofluorocarbon (HFC) blend, R-410A has become the preferred alternative to R-22, which is being phased out due to its ozone-depleting potential. One of the main features of R-410A is its high latent heat of vaporization, which allows for efficient heat transfer and improved cooling performance in air conditioning units.

Technologically, R-410A operates at higher pressures than older refrigerants, meaning systems designed for R-410A need to be built with more robust components to safely handle these pressures. This results in a more compact system design that offers enhanced performance and reliability. The dual-component nature of R-410A—composed of difluoromethane (R-32) and pentafluoroethane (R-125)—provides an optimal balance of thermodynamic properties, leading to superior energy efficiency, especially in variable speed applications.

In terms of characteristics, R-410A has a higher cooling capacity, which enables HVAC systems to effectively cool larger spaces or run more efficiently when cooling smaller areas. The refrigerant is non-toxic and non-flammable, which enhances safety during its use. In addition, R-410A has a lower global warming potential relative to other refrigerants, making it a more environmentally responsible choice for modern cooling systems.

Moreover, R-410A systems typically require less refrigerant charge due to their efficiency, contributing to reduced greenhouse gas emissions. The adoption of R-410A aligns with regulatory trends aimed at minimizing the environmental impact of refrigerants in cooling applications.

Overall, the Friedrich R-410A refrigerant embodies a combination of technology and environmental stewardship, making it a cornerstone of contemporary HVAC design. Its ability to provide effective and energy-efficient cooling solutions while being compliant with modern environmental regulations positions R-410A as the refrigerant of choice for engineers and installers focused on sustainability and performance in air conditioning systems.
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