Daikin Super Multi NX C-Series User Manual

SiE12-411 Control Specification
Function and Control 95
3.10 Defrost Control
Outline Heat Pump Only
Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor
heat exchanger temperature must be more than its fixed value when finishing.
Detail Conditions for Starting Defrost
The starting conditions must be made with the outdoor air temperature and heat exchanger
temperature. Under the conditions that the system is in heating operation, 6 minutes after the
compressor is started and more than 47 minutes of accumulated time pass since the start of the
operation or ending the defrosting.
Conditions for Canceling Defrost
The judgment must be made with heat exchanger temperature. (4°C~12°C)
3.11 Low Hz High Pressure Limit
Outline Heat Pump Only
Set the upper limit of high pressure in a low Hz zone. Set the upper limit of the indoor heat
exchanger temperature by its operating frequency of Hz. Separate into three zones, reset zone,
unchanged zone and drooping zone and the frequency control must be carried out in such
zones.
Detail Separate into Zones
Note: Drooping: The system stops 2 minutes after staying in the drooping zone.
Defrosting
signal
Preparation
signal
Compressor
43 minutes
2YC32 : 94Hz
2YC45 : 54Hz
2YC32 : 94Hz
2YC45 : 52Hz
6 minutes
0Hz
60 seconds
120 seconds
650 seconds
30 seconds 7 minutes
Pl control
Completion
0 seconds
Start
1
0
1
0
ON
OFF
ON
OFF
ON
OFF
ON
OFF
5 seconds
450pps Initial opening
Initial opening
5 seconds
4-way va
lve
Solenoid
valve
Operating room
Motorized valve
opening
Operation
stopped room
Motorized
valve opening
Fan
450pps 450pps
140pps
60°C
Reset zone
Drooping zone
Unchanged
zone
Highest heat
exchanger
temperature
among the
operating rooms
59°C
56°C

Daikin Super Multi NX C-Series Specifications

General

Brand	Daikin
Model	Super Multi NX C-Series
Category	Air Conditioner
Language	English