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MR09C1H
Friedrich MR09C1H Service Manual
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9.
5
2
-w
ay
,
3
-w
ay
V
a
lv
e
Ap
pe
ar
an
ce
2-way Valve (Liquid Side)
3-way Valve (Gas Side)
Shaft position
Shaft position
Service port
d
e
s
o
l
C
d
e
s
o
l
C
d
e
s
o
l
C
d
e
s
o
l
C
(with valve cap)
(with valve cap)
(with cap)
n
e
p
O
d
e
s
o
l
C
(clockwise)
d
e
s
o
l
C
n
e
p
O
n
e
p
O
(with valve cap)
(with valve cap)
(with cap)
n
e
p
O
n
e
p
O
d
e
s
o
l
C
(clockwise)
(counter-clockwise)
(conne
cted manifold
gauge)
n
e
p
O
n
e
p
O
n
e
p
O
(with charging
cylinder)
n
e
p
O
n
e
p
O
n
e
p
O
(with charging
cylinder)
n
e
p
O
n
e
p
O
n
e
p
O
n
e
p
O
Works
Shipping
Air purging
(Installation)
Operation
Pumping down
(Transfering)
Evacuation
(Servicing)
Gas charging
(Servicing)
Pressure check
(Servicing)
Gas releasing
(Servicing)
1.
2.
3.
4.
5.
6.
Valve cap
Open position
Closed position
Pin
Service
port
Service
port cap
To outdoor unit
Flare nut
To
piping
connection
To outdoor unit
Hexagonal wrench (4mm)
Open position
Closed position
To
piping
connection
Flare nut
Open
(with charging cylinder)
Open
(with charging cylinder)
(with vacumm pump)
(clockwise)
Trou
ble
shoo
ting
67
66
68
Table of Contents
Default Chapter
2
Table of Contents
2
Model and Product Code
3
Summary and Features
4
Important Safety Information
5
1 Safety Precautions
6
2 Specifications
8
Unit Specifications
8
Operation Date
12
Expanded Capacity Data Tables for both Cooling and Heating
13
Operation Characteristic Curve N
14
Noise Criteria Curve Tables for both Models
15
3 Construction Views
16
Indoor Unit
16
Outdoor Unit
16
4 Refrigerant System Diagram
17
5 Schematic Diagram
18
Electrical Date
18
Electrical Wiring
18
Printed Circuit Board
20
Schematic Diagram
21
6 Function and Control
22
Timer off
22
Description of each Control Operation
27
Frequency Control
32
Minutes Standby
32
Compressor Protection Function
32
Discharge Pipe Control
33
Input Current Control
33
Fan Control
35
7 Installation Manual
36
Ground Requirements
37
Installation Dimension Diagram
38
Installing Indoor Unit
40
Installing Outdoor Unit
41
Electric Wiring
41
Check after Installation
42
Operation Test
42
8 Troubleshooting
44
Precautions before Performing Inspection or Repair
44
Confirmation
44
Judgement by Flashing LED of Indoor/Outdoor Unit
44
How to Check Simply the Main Part
52
Gas Charging
73
9 Removal Procedure
74
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Friedrich MR09C1H Specifications
General
Brand
Friedrich
Model
MR09C1H
Category
Air Conditioner
Language
English
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