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9.2.4 Protection of pressure or temp.
Protection of pressure or temp.
Is it k1 or K2 open ?
Is temp. protective switch K1
Possible reason
1. The wires is loose to K1
2. Air or other gas in the refrigerant.
3. Heat exchanger is dirty
4. Outdoor fan or fan blade is
defective
5. Outdoor unit is bad ventilation
6. Refrigerant is leakage
Yes
Yes
Is pressure protective switch K
2
Yes
Possible reason
1. The wires is loose to K
2. Air or other gas in the refrigerant.
3. Heat exchanger is dirty
4. Outdoor fan or fan blade is
defective
5. Outdoor unit is bad ventilation
6. Refrigerant is two much
2
Содержание YOHC 12
Страница 7: ...Part 2 Indoor units Ceiling Floor Type ...
Страница 17: ...4 Service space 600mm 600mm ...
Страница 20: ...6 1 3 YOKC 24 6 1 4 YOKC 30 ...
Страница 21: ...6 1 5 YOKC 36 6 1 6 YOKC 48 YOKC 60 ...
Страница 29: ...8 Air Velocity and Temperature Distributions Discharge angle 60 CEILING Airflow velocity Temperature ...
Страница 30: ...Discharge angle 60 FLOOR Airflow velocity Temperature ...
Страница 37: ...Part 3 Outdoor Units Outdoor Units ...
Страница 39: ...1 Dimensions 1 1 YOJC 12 290 315 285 530 62 590 750 110 1 2 YOJC 18 12 5 ...
Страница 40: ...1 3 YOJC 24 330 62 895 860 590 141 1 4 YOJC 30 YOJC 36 ...
Страница 41: ...1 5 YOJC 48 YOJC 60 ...
Страница 43: ...3 Wiring diagrams 3 1 Cooling Heating 3 1 1 YOJC 12 3 1 2 YOJC 18 ...
Страница 46: ...4 Field Wiring ...
Страница 49: ...7 Sound levels 1m Microphone 12000btu h 18000btu h ...
Страница 50: ...24000btu h 3000btu h 36000btu h 48000btu h 60000btu h ...
Страница 66: ...Part 4 Installation Installation ...
Страница 75: ...www johnsoncontrols com SM YOHC 12 60GB 03 07 ...