Haier 1U12DR4EAA User manual

SERVICE MANUAL
Wall Mounted Type
ON/OFF
1U12DR4EAAModel No.
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
Repair the product or products dealt with in this service information by anyone else could result in serious injury or death
WARNING
2016 (Qingdao Haier Air Conditioner General corp. , Ltd)
All rights reserved. Unauthorized copying and distribution is a violation of law
Haier Group Version V1 Date 2016-11-07

Contents
Contents
1. Introduction ............................................................................................1
2. Specifications.........................................................................................7
3. Piping diagrams ................................................................................... 9
4. Operation range...................................................................................10
5. Printed Circuit Board Connector Wiring Diagram .................................11
6. Dimensional drawings..........................................................................12
7. Center of gravity ..................................................................................12
8.Service diagnosis ..................................................................................13
9Performance Curves Diagram.. . . . .............................................................................18
.

Introduction
1 Domestic air conditioner
1 Introduction
1.1 Model name explanation
1 U 1 2 D R 4 E AA
The maximum combination number
Type of outdoor unit: U (normal type)
Nominal cooling capacity (12000BTU/h)
Platform of outdoor units: D (D platform)
Version number
Heat pump & R410A refrigerant
AC
Apply toT1; 220~240V50HZ/1ph
District

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Specifications
7 Domestic air conditioner
2 Specifications
NOMINAL DISTRIBUTION SYSTEM VOLTAGE
1/esahP
05zHycneuqerF
032VegatloV
NOMINAL CAPACITY and NOMINAL INPUT
cooling heating
Capacity rated KW 3.31
Power Consumption(Rated) KW 1.03
16.312.3W/WPOC/REE
h/³mlavomeRerutsioM
TECHNICAL SPECIFICATIONS-UNIT
Dimensions H*W*D mm 660×275×540
Packaged
Dimensions H*W*D mm 802×373×595
82GK/thgieW
13GK/thgiewssorG
Sound level Sound pressure dB 53
ELECTRICAL SPECIFICATIONS
cooling heating
Nominal running current A 4.7 4.4
Maximum running current A 6.0 6.0
AtnerrucgnitratS 14.1 13.1
1.6*10 ³
-
3.57
Btu/h 11250 12150
0.99

Specifications
8 Domestic air conditioner
TECHNICAL SPECIFICATIONS-PARTS
cooling heating
Compressor
Type Rotary Compressor
Model 44A273BJ-FJKD
Motor output W 1120
Oil type 68EP or equivalent
Oil charge volume L 0.32
Fan
Type Axial fan
Motor output W 20
Air flow rate(high) m³/h 1500
Speed(high/low) rpm 920
Heat
exchanger
Type ML fin-¶7HI-HX tube
Row*stage*pitch 1.5*24*1.40
TECHNICAL SPECIFICATIONS-OTHERS
Refrigerant
circuit
Refrigerant type R410a
Refrigerant charge KG 0.84
Maximum allowable distance
between indoor and outdoor m 15
Maximum allowable level difference m 10
Refrigerant control Capillary
Piping connections
(external diameter)
liquid mm ĭ.35
gas mm ĭ9.52
drain mm ĭ
Heat insulation type Both liquid and Gas pipes
Max. piping Length m 15
Max. Level Difference m 10
Chargeless m 7
Amount of Additional Charge of Refrigerant g/m 20
Note: the data are based on the conditions shown in the table below
cooling heating Piping length
Indoor: 27 DB/19 WBćć
Outdoor: 35 DB/24 WBćć
Indoor:20 DBć
Outdoor: 7 DB/6 WBćć 5m
Conversation formulae
Kcal/h= KW×860
Btu/h= KW×3414
cfm=m³/min×35.3
NMOC Ze-Gles RB