65
7-2.
Operation Mode
and Control
Method
10) Night setback operation
A Night setback operation performs heating at 5K lower and cooling at 5K higher temperatures against the remote
controller set temperature from the setting start time (22:00) to the end time (6:00) every day.
Note) • Set the remote controller time before starting a Night setback operation.
• The set time can be changed with remote controller DN. (See 9-8 (See page 149))
Related DN
11) Frost protection operation
A Frost protection operation performs heating at the set temperature RSC_F = 15°C (DN).
1)How to operate
• Pressing the remote controller [ ] button and then Frost protection “ON” starts a heating operation at the set
temperature of 15°C.
• Set Frost protection “OFF” cancels the Frost protection operation.
• The remote controller displays "F" as the temperature during Frost protection.
• A set temperature change during a Frost protection operation cancels the operation.
2)Automatic stop of Frost protection operation
• The operation period of Frost protection can be set at DN_12 and 13 on the remote controller.
Longest period available: 20 days and 23 hours
• By entering the operation period (day and hour) at DN_12 and 13 on the remote controller and set Frost protection
“ON”, the operation period is set and the Frost protection operation will automatically be finished after the period
has passed.
• The operation period setting (day and hour) is stored in the memory.
Related DN
Item Operation flow and applicable data, etc.
DN Setting item Default Setting available range
Remote controller
0E
Night setback start Time setting 22:00 0:00 - 23:00
Remote controller
0F
Night setback end Time setting 6:00 0:00 - 23:00
26 Night setback setting Temperature width 5 degree 3 - 20 degree
58 Night setback setting activate 0. Zone 1 & 2 1. Zone 1 only
DN Setting item Default Setting available range
3A Frost protection Yes / No 1: Yes 0: No
3B Frost protection Set temperature 15°C 8 - 20°C
12 (Remote controller)
FROST running period (days) 0 0 - 20 days
13 (Remote controller)
FROST running period (hours) 0 0 - 23 hours
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