Haier HSU-12HSA03, Service Manual

Page: 9 / 90

Haier air conditioner
Edition: 20070116
- 9 -
32 PA6 pushup stepping motor C
33 PA7 pushup stepping motor D
34 PTB0/ATD0 output outdoor communication
35 PTB1/ATD1 input outdoor communication
36 PTB2/ATD2 room temperature
37 PTB3/ATD3 inner coil
38 PTB4/ATD4 swing left stepping motor D
39 PTB5/ATD5 swing left stepping motor C
40 PTB6/ATD6 swing left stepping motor B
41 PTB7/ATD7 swing left stepping motor A
42 PTD0 swing right stepping motor D
43 PTD1 swing right stepping motor C
44 VDDAREF VCC
45 AVSS/VREFL GND
46 PTD2 swing right stepping motor B
47 PTD swing right stepping motor A
48 PTH0/KBD3 central control input
49 PTH1/KBD4 central control output
50 PTD4/TBCLK empty
51 PTD5 G/V LCS K health H heat
52 PTD6/TACLK G/V WR K operation H dry
53 PTD7 G/V DA K power supply H cool
54 VREFH VCC
55 VDDA VCC
56 VSSA GND
57 CGMXFC
58 OSC2
59 OSC1
60 PTC0 emergency switch
61 PTC1 empty K timer
62 PTC2/MCLK
G/V green light K green light H
operation
63 PTC3 G/V blue light K blue light H timer
64 PTC5 G/V red light K red light H health
II. Temperature adjustment function
2.1
During temperature adjustment function, the operation frequency of outdoor unit will be based on
indoor temperature and the set temperature.
When air capacity operates automatically; the indoor fan will be controlled on the basis of the
requirements of temperature adjustment.
When the unit operates to make heat, the indoor wind unit will be controlled based on scrolling
temperature.