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18
Trial Operation
Procedure and Summary of Trial Operation
NOTE 1:
Criteria for indoor air inlet/outlet temperature difference
After operation for a minimum of 30 minutes in “COOL” mode, if temp. difference
between the air inlet and air outlet of the indoor unit is 8°C or more – operation
is normal.
(In Max. Hz operation)
• The difference in temperature between the air inlet and air outlet decreases
when the total number of indoor units connected, exceeds 100% of the system
capacity, or when the pipe length exceeds specification.
NOTE 2:
Criteria of operation current value
In cooling operation, when the current is within ± 15% of the specified current
value, the system is operating normally.
(COOL Max. Hz operation)
The current value differs as described below according to the operation conditions.
• Greater than the specified current
(1) Temp. in indoor/outdoor is high.
(2) Radiation of outdoor unit is bad.
• Less than the specified current
(1) Temp. in indoor/outdoor is low.
(2) Gas leakage. (Insufficient refrigerant amount)
NOTE 3:
Criteria of operation pressure
COOL/
High pressure 16 to 22kgf/cm
2
G
Indoor 18 to 32°C
HEAT
Low pressure 3.5 to 5.5kgf/cm
2
G
Outdoor 25 to 35°C
NOTE:
Measurement taken 15 minutes after operation start (Dry bulb temp. °C)
Summary of Contents for MM-A0160HX
Page 1: ...Service Manual Air Conditioner Multi Split Type System Modular Multi System HFCR407C A90 0130 ...
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Page 133: ...134 20 Additional Literature and Contacts ...
Page 134: ...135 20 Additional Literature and Contacts ...
Page 135: ...TOSHIBA AIR CONDITIONING www toshiba aircon co uk MADE IN UK A90 0130 Revised April 2001 ...