Technical service manual 2007 (стр. 1 )

MULTI SPLIT TYPE, HEAT PUMP AIR CONDITIONERS

Technical service manual 2007

R410a Alfa multi Series

Indoor Models

MSHI-09HRN1

MSHI-12HRN1

Outdoor Models

M2OA-18HRN1 M2OA-21HRN1

M3OA-27HRN1 M3OA-30HRN1

Multi SERIES

1.  Features

2.  Function

3.  Specification

4.  Dimensions

5.  Refrigeration cycle diagram

6.  Wiring diagram

7.  Troubleshooting

8.  Electronic function

9.  Characteristic of temp. sensor

1. Features

1.1 Universal outdoor unit and indoor unit design

1.2 R410a refrigerant; Cooling & heating units

1.3 The indoor unit combination is as follow list:

OUTDOOR UNIT MODEL	INDOOR UNIT COMBINATION
M2OA-18HRN1	9K×2
M2OA-21HRN1	9K+12K
M3OA-27HRN1	9K×3
M3OA-30HRN1	9K×2+12K

1.4 Working Temperature Range

Models	Cooling	Heating
Indoor Low	Indoor Hi	Outdoor Low	Outdoor Hi	Indoor Low	Indoor Hi	Outdoor Low	Outdoor Hi
multi on/off	17	/	5	43	/	30	-7	24

2.Function

 

3. Specification

3.1 Indoor unit

Model	MSHI-09HRN1	MSHI-12HRN1
Power supply	Ph-V-Hz	1Ph,220-240V~,50Hz	1Ph,220-240V~,50Hz
Cooling	Capacity	Btu/h	9000	12000
Input	W	36	44
Rated current	A	0.16	0.2
Heating	Capacity	Btu/h	10000	14000
Input	W	39.5	44
Rated current	A	0.16	0.2
Indoor fan motor	Model		RPG13H	RPG20D
Brand		WELLING	WELLING
Input	W	36.5	51.5
Capacitor		1.2UF/450VAC	1.5UF/450V
Speed(hi/mi/lo)		1200/950/850	1220/1000/800
Indoor coil	a. Number of rows		2	2
b. Tube pitch(a)x row pitch(b)	mm	21×13.37	21×13.37
c. Fin spacing	mm	1.3	1.3
d. Fin type (code)		Hydrophilic aluminium	Hydrophilic aluminium
e. Tube outside dia. and type	mm	φ7, innergroove tube	φ7, innergroove tube
f. Coil length x height x width	mm	635×315×27.34	635×315×27.34
g. Number of circuits		2	2
Indoor air flow (Hi/Mi/Lo)	m3/h	500/460/410	680/520/420
Indoor noise level (Hi/Mi/Lo)	dB(A)	36/34/32	39/33/28
Indoor unit	Dimension (W*H*D)	mm	750*250*205	815*280*215
Packing (W*H*D)	mm	830*285*336	915*290*360
Net/Gross weight	Kg	8.5/10	10/12
Liquid side/Gas side	mm	6.35/9.53	6.35/12.7

3.2 Outdoor unit

Outdoor Model	M2OA-18HRN1	M2OA-21HRN1
Power supply	Ph-V-Hz	1Ph,220-240V~,50Hz	1Ph,220-240V~,50Hz
Cooling	Capacity	Btu/h	18000	21000
Capacity	W	5275	6155
Input	W	1680	2000
Rated current	A	8.0	9.7
EER	w/w	3.1	3.04
Heating	Capacity	Btu/h	20000	24000
Capacity	W	5862	7034
Input	W	1680	2050
Rated current	A	8.0	9.8
EER	w/w	3.45	3.42
Max. input power	W	2280	2520
Max. current	A	9.8	12.0
Starting current	A	21.7	21.7
Compressor	Model		PA108X1C-4FTDE ; PA108X1C-4FTDE	PA108X1C-4FTDE ; PA145X2C-4FT
	Type		ROTARY	ROTARY
	Brand		GD TOSHIBA	GD TOSHIBA
	Capacity	Btu/h	8769 X 2	8769+12014
	Input	W	885X2	885+1200
	Rated current(RLA)	A	4.15X2	4.15+5.6
	Locked rotor Amp(LRA)	A	40X2	40+57
	Thermal protector		Internal	Internal
	Capacitor	uF	25uF/370VAC X 2	25+35uF/370VAC
	Refrigerant oil	ml	350X2	350+480
Outdoor fan motor	Model		YDK60-6	YDK60-6
Brand		Welling	Welling
Input	W	111	111
Capacitor	uF	4uFx2	4uFx2
Speed	r/min	830/650	830/650
Outdoor coil	a. Number of rows		2	2
b. Tube pitch(a)x row pitch(b)	mm	25.4x24	25.4x24
c. Fin spacing	mm	1.7	1.7
d. Fin type (code)		Hydrophilic aluminium	Hydrophilic aluminium
e. Tube outside dia. and type	mm	Ф9.53, Innergroove tube	Ф9.53, Innergroove tube
f. Coil length x height x width	mm	810X610X44	810X610X44
g. Number of circuits		2/2	2/2
Outdoor air flow	m3/h	2200	2200
Outdoor noise level	dB(A)	56	56
Outdoor unit	Dimension(W*H*D)	mm	895X655X345	895X655X345
Packing (W*H*D)	mm	1050X780X470	1050X780X470
Net/Gross weight	Kg	76/82	76/82
Refrigerant type	R410A g	980X2	900+1100
Design pressure(Hi/Lo)	MPa	4.4/2.0	4.4/2.0
Refrigerant piping	Liquid side/ Gas side	mm(inch)	Ф6.35/Ф9.53	Ф6.35/Ф9.53; Ф6.35/Ф12.7
Max. refrigerant pipe length	m	15	15
Max. difference in level	m	10	10
Connection wiring		No
Plug type		No
Thermostat type		Electronic control
Operation temp	℃	17-30
Ambient temp	℃	18~43(cooling); -7~24(heating)
Outdoor Model	M3OA-27HRN1	M3OA-30HRN1
Power supply	Ph-V-Hz	1Ph,220-240V~,50Hz	1Ph,220-240V~,50Hz
Cooling	Capacity	Btu/h	27000	30000
Capacity	W	7913	8792
Input	W	2570	2880
Rated current	A	13.1	13.7
EER	w/w	3.03	3.02
Heating	Capacity	Btu/h	30000	34000
Capacity	W	8792	9965
Input	W	2700	3070
Rated current	A	13.3	14.2
EER	w/w	3.22	3.22
Max. input power	W	3600	3600
Max. current	A	16.6	16.6
Starting current	A	31.8	31.8
Compressor	Model		PA200X2CS-4KU1； PA145X2C-4FT	PA200X2CS-4KU1； PA145X2C-4FT
	Type		ROTARY	ROTARY
	Brand		GD TOSHIBA	GD TOSHIBA
	Capacity	Btu/h	16791+12014	16791+12014
	Input	W	1670+1200	1670+1200
	Rated current(RLA)	A	7.81+5.6	7.81+5.6
	Locked rotor Amp(LRA)	A	57+57	57+57
	Thermal protector		Internal	Internal
	Capacitor	uF	45+35uF/370VAC	45+35uF/370VAC
	Refrigerant oil	ml	750+480	750+480
Outdoor fan motor	Model		YDK50-4G1	YDK50-4G1
Brand		Welling	Welling
Input	W	200	200
Capacitor	uF	4uFx2	4uFx2
Speed	r/min	1150	1150
Outdoor coil	a. Number of rows		2	2
b. Tube pitch(a)x row pitch(b)	mm	25.4x24	25.4x24
c. Fin spacing	mm	1.7	1.7
d. Fin type (code)		Hydrophilic aluminium	Hydrophilic aluminium
e. Tube outside dia. and type	mm	Ф9.53, Innergroove tube	Ф9.53, Innergroove tube
f. Coil length x height x width	mm	813X812X44	813X812X44
g. Number of circuits		3/3	3/3
Outdoor air flow	m3/h	3200	3200
Outdoor noise level	dB(A)	58	58
Outdoor unit	Dimension(W*H*D)	mm	860X830X330	860X830X330
Packing (W*H*D)	mm	1000X985X425	1000X985X425
Net/Gross weight	Kg	81/90	81/90
Refrigerant type	R410A g	1550+1150	1550+1150
Design pressure(Hi/Lo)	MPa	4.4/2.0	4.4/2.0
Refrigerant piping	Liquid side/ Gas side	mm(inch)	Ф6.35/Ф9.53	Ф6.35/Ф9.53; Ф6.35/Ф12.7
Max. refrigerant pipe length	m	15	15
Max. difference in level	m	10	10
Connection wiring		No
Plug type		No
Thermostat type		Electronic control
Operation temp	℃	17-30
Ambient temp	℃	18~43(cooling); -7~24(heating)

4 Dimension