KUHL+

ELECTRONIC CONTROL

COOL WITH ELECTRIC HEAT MODEL

EL36M35A

WIR ING DIAG R AM

C OMP R E S S OR

UI HOLDE R E LE C TR ONIC S AS Y

C

S

R

OLP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LU E

E D

 

LAC K

 

 

 

 

 

 

B

R

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B LAC K

R E D

C AP AC IT O R

G R E E N B R AC K E T

T O C HAS S IS

BLUE

 

S OLID S TATE R E LAY

 

 

 

 

 

￿

￿

 

 

 

 

 

 

S S R

B LAC K

 

 

 

 

 

 

HE ATE R

 

 

 

￿

￿

B LUE

 

 

 

 

 

 

 

 

 

 

OR ANG E

R E D

 

 

 

 

R E D

 

 

 

 

 

 

 

 

R E D

 

S OLID S TATE R E LAY

BLUE

 

 

 

 

 

WHIT E

 

 

 

￿

￿

 

 

 

 

 

 

 

 

 

 

S S R

 

 

 

B LAC K

￿

￿

B LU E

 

 

 

 

 

 

 

 

 

 

 

 

BLAC K

 

 

 

 

 

 

WHITE

C AP AC ITOR

 

 

 

 

 

C OM

 

 

 

 

 

BR OWN

H

 

 

N

 

 

EN

R

 

 

 

 

 

E

 

A

 

 

 

RE

M

F

 

 

 

 

 

 

 

TO INNE R WALL/

G

 

 

 

 

 

 

 

 

 

 

 

MOT OR MOUNT

 

 

O UTDO OR AIR S E NS OR

 

R V

OUT DOOR C OIL S E NS OR

 

R E LAY

IN DOOR C OIL S E NS OR

 

 

 

F AN 4

 

 

R E LAY

 

 

F AN 3

 

 

R E LAY

 

 

F AN 2

 

 

R E LAY

 

 

F AN 1

 

 

R E LAY

 

 

HE AT

 

 

R E LAY

 

 

HE AT

L2 or AC N

 

 

 

R E LAY

 

 

C OMP

 

 

R E LAY

 

 

 

L1

 

 

BLAC K

 

 

WHIT E

OW

 

WHIT E

 

EEN

N/YELL

 

GR

EE

 

 

ORGR

MOTOR

DS C HR G

T O

AIR

S E NS OR

DIS P LAY

AMB IE NT

 

AIR S E NS OR

 

S UP P LY C OR D

TO C AP AC ITOR

BR AC KE T

S C HE MAT IC

 

 

 

 

 

 

 

 

 

 

US E R INTE R F AC E

NE UTR AL (115 V)

 

 

HIG H

 

L2

(230/208 V)

 

 

 

 

L1

3

F3

 

 

R

 

 

 

ME DIUM

 

 

 

 

 

2

F 2

 

 

FAN MTR

 

 

 

LOW

 

 

 

 

 

1

F 1

 

 

FAN

C OM

 

 

 

S

 

 

 

 

 

 

 

 

 

E LE C T R IC HE AT

 

 

C AP

 

 

6

HL

HTR

TF

 

 

 

 

E H1

 

 

 

 

 

 

 

 

 

 

 

E LE C T R IC HE AT

 

 

 

 

 

 

L2

 

 

 

 

 

 

 

 

OLP

R

 

 

 

 

 

 

 

 

 

C OMP R E S S OR

 

C

C OMP R E S S OR

 

L1

5

C OMP

 

 

 

 

 

 

￿ ￿￿ ￿ ￿￿ ￿ ￿ ￿￿ ￿ ￿ ￿ ￿ ￿ ￿ ￿ ￿

 

 

HE R M

C OM

 

 

 

 

 

S

 

C AP

L E G E N D

C AP

- C AP AC ITOR

T

 

C OMP R - C OMP R E S S OR

 

MTR

- F AN MOTOR ￿ ￿ ￿ ￿

 

OLP

- OVE R LOAD PR OTE C TOR

 

UI

- US E R INTE R FAC E

 

TF

- THE R MAL FUS E

HTR

 

 

HL

- HE ATE R LIMIT F US E

 

-THE R MIS TE R

-C OMBINATION TE R MINAL

-GR OUNDE D LE AD S Y MB OL

-INS ULATOR

-HE ATE R E LE ME NT

P AR T NO. 92170007

R E V .

00

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Image 73
Friedrich R-410A service manual KUHL+ Electronic Control Cool with Electric Heat Model, EL36M35A

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.