INSTALLATION | Appliance installation
982000-AIR-M2-M4-EN03.1 | www.ochsner.com 35
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1
2
1 X5 terminal for suction gas sensor S2
2 Terminal on expansion valve controller for the stepper
motor of expansion valve A
1: green
3: brown
2: yellow
4: white
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OTE pin
Description
7
Heating circuit circulation pump 1, direct (HCP 1)
8
Heating circuit circulation pump 2, mixed (HCP 2)
10
DHW auxiliary heater, only on M4 (DHWAH)
13/14
DHW charging pump ON/OFF (WWL)
15/16
Heating circuit mixing valve (MVH)
25/26
Buzzer fault output
40
0-10 VDC fan speed
41/42
Control elements (eBus)
43
Mixer sensor (TMK)
44
Outdoor temperature sensor (TA)
45
Top buffer sensor (TPO)
46
DHW sensor (TB)
49
Defrost sensor 1 (TQE)
50
Defrost sensor 2 (TQA)
52
Bottom buffer sensor (TPM)
55
Building management system input