GRUPAd.o.o.
36
temp. sensor TA, any outdoor can meet the below conditions for 5 minutes, all the outdoors will enter
defrosting operation.
a. when TE<= -6degree for 5 minutes;
b. when -6<TA<5, -13.6<TE<-6 for 5 minutes, enter defrosting;
c. TA<-6, TE<= -15 for 5 minutes, and compressor has run for 90 minutes between the two defrostings;
In defrosting operation:
a. 4-way valve OFF
b. outdoor motor OFF
c. anti-cold air control of indoor motor OFF
d. outdoor EEV OFF
Quit defrosting
Any of the below conditions can be met, the unit will quit defrosting.
a. After defrosting begins, 10 minutes later, defrosting is over;
b. Detect the defrosting condition of outdoor heat exchanger by TE, all the temperatures at the defrosting
point are over 10 degree for 60 seconds or reaches 15 degree or 10 seconds, quit defrosting;
c. High pressure Pd is over kgG/cm2, quit defrosting.
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Summary of Contents for MRV II AV48NMVERA
Page 6: ...G R U P A d o o 06 2 Wiring work ...
Page 40: ...G R U P A d o o 40 ...
