Haier AH1-070B User manual

AHU Valve Box
SYJS-07-2020REV.C
Edition: 2020-07
AH1-070B
AH1-140B
AH1-280B
AH1-560B
AH1-730B

Content
1.General information.................................................................................................................1
2. Specication...........................................................................................................................3
3. Combination method..............................................................................................................4
4. Dimension ..............................................................................................................................6
5. Wiring diagram.......................................................................................................................8
6.Installation...............................................................................................................................9
7.PCB photo.............................................................................................................................29
8. Dip switch setting .................................................................................................................30
9. Failure code .........................................................................................................................38
10.Troubleshooting ..................................................................................................................39
11.Sensor resistance table.......................................................................................................43

1
1.General information
1.1 Function:
Thought AHU valve box, can realize the haier MRV outdoor unit connect with third party air handling
units. As the following gure
Original AHU Kit V1.0 New AHU Kit V2.0
(2) Optional insttion location: can choose lting or nailed to the wall
Hang
Nail to the wall
(3) Control box location changeable :
Control box can be separately with EXV box.(5 meter) Control box can be front or back of EXV box, easy
installation
1.2 Feature:
(1) (1) EXV part and control part integration, easy for translation and installation. Gas pipe is cancelled compared to
the previous generation.

2
1.3 System lineup
1.4 Conguration
1.5 Nomenclature
Code
position 1，2 3 4 5 6 7 8
Code
meaning Valve box series Valve box type Space mark
Indoor capacity which Valve box can be
connected Series number
Code and
contents
VP 3-pipe valve
box 1 1 to 1
-
Cooling
capacity
Cooling
capacity<
99KW
Three digits***(unit：
100W) AFirst generation
MS
MRV
+SUPER
MATCH
valve box
2 1 to 2 Cooling
capacity
Cooling
capacity>
99KW
Three digits 000
（unit ：
HP) B Second generation
AH MRV + AHU
valve box 3 1 to 3 Cooling capacity
Cooling
capacity is
not dened
Three digits 000 C Third
generation
4 1 to 4 … …
… … … …
Haier AHU kit provides a wide range solution for Haier MRV outdoor unit connecting with the 3rd party AHU
Compatibility
Outdoor MRV5 MRV SII
HP 8-26 4 5 6 8 10 12
Power Supply 3Ph/380-
415V/50/60Hz
1Ph/220-230Ph/50/60Hz
3Ph/380-400V/50/60Hz 3Ph/380-400V/50/60Hz
AH1-070B/AH1-140B/AH1-280B
AH1-560B/AH1-730B

3
2. Specication
Model AH1-070B/140B AH1-280B AH1-560B/730B
Connected AHU capacity 3 <x ≤7KW(070B)
7 x ≤14KW(140B) 14 ＜x ≤28KW(5-10HP) 8 < x ≤56KW(560B) 56 < x ≤73KW(730B)
Power supply 220-240V/50/60Hz 220-240V/50/60Hz 220-240V/50/60Hz
Dimention(W/D/H) 420/260/165 420/260/165 420/260/165
Shipping dimensions 520*340*225 520*340*225 520*340*225
Material Galvanized steel Galvanized steel Galvanized steel
Color Grey Grey Grey
Weight/kg 5.5 5.5 6.5
Shipping Weight/kg 8.5 8.5 10
Liquid pipe (mm) 9.52(Main) /6.35 9.52(Main) /6.35 12.7（Main）/15.88
Pipe connection method Flare connection and
welding
Flare connection and
welding
Flare connection and
welding
Branch box-Indoor Max Single
pipe length/m 555
Branch box- indoor max drop/
m 555

4
3. Combination method
Capacity Combination model
3≤x≤7KW AH1-070B
7<x≤14KW AH1-140B
14<x≤28KW AH1-280B
28<x≤56KW AH1-560B
56<x≤73KW AH1-730B
73<x≤112KW AH1-560B+AH1-560B
112<x≤146KW AH1-730B+AH1-730B
146<x≤168KW AH1-560B+AH1-560B+AH1-560B
168<x≤219KW AH1-730B+AH1-730B+AH1-730B
219<x≤224KW AH1-560B+AH1-560B+AH1-560B+AH1-560B
224<x≤292KW AH1-730B+AH1-730B+AH1-730B+AH1-730B
Note:
The above is the combination method for single heat exchanger, when multiple heat exchangers need to be
matched according to the capacity of each heat exchanger
Length
Pipe length between outdoot unit& AHU VALVE Min5m，max.50m
Pipe length between AHU valve & AHU Max.5m
Drop between outdoor unit & AHU valve ±30m
Drop between AHU & AHU valve ±5m
Note:
• Non-mixing connection: AHU connection rate 90 ~ 110%
• When mixing:
1. The total indoor unit connection rate is 50 ~ 110%, of which the air conditioner
internal unit is not less than 50%
2. A system can only be connected to an AHU and an AHU valve box

5
AH1-070B AH1-140B AH1-280B AH1-560B AH1-730B
Capacity 3.6-7.1 7.1-14 14-28 28-56 56-73.5
fan Air
volumem3/h 540/1420/1775 1065/2800/3500 2100/5600/7000 4200/11200/14000 8400/14700/18375
Coil qty. 2-4 3-8 4-14 6-26 12-32
Coil volume L 0.54-1.28-1.42 1.07-2.52-2.8 2.1-5.04-5.6 4.2-10.08-11.2 8.4-13.23-14.7

6
4. Dimension
AH1-070B AH1-140B AH1-280B
178
225
154
110
420
346
35
394
75
394

7
AH1-560B AH1-730B
200
225
203
156
420
346
35
394
75
394

8
5. Wiring diagram