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DLY (DELUXE) SERIES HYDRONIC CASSETTE
.
37
LOW TEMPERATURE PROTECTION OF INDOOR COIL
1) If
Ti1
̰
2 ºC for 2 minutes, MTV1 is turned off. If indoor fan is set for low speed, it will run at medium
speed. If it is set at medium or high speed, it will keep running at the same speed.
2) If
Ti1
̱
5ºC for 2 minutes, MTV1 is turned on. Indoor fun runs at set speed.
2)
FAN MODE
1)
Indoor fan runs at the set speed while heater, MTV1 and MTV2 are turned off.
2)
Indoor fan speed can be adjusted for low, medium and high.
3)
HEAT MODE
i. HEAT MODE--- WITHOUT ELECTRICAL HEATER
1)
MTV2 and heater always off.
2)
If Tr <= Ts
ε
1 ºC, heat operation is activated, MTV1 is turned on. Indoor fan runs at the set speed.
3)
If Tr >Ts, heat operation is terminated, MTV1 is turned off.
Indoor fan repeatedly runs at low fan speed for 30 seconds and stops for 3 minutes.
4)
The range of Ts is 16~30 ºC
DŽ
5)
Indoor fan speed can be adjusted for low, medium, high and auto.
6)
MTV1 will delay for 30 seconds before it is turned on.
7)
MTV1 will delay for 120 seconds before it is turned off.
ii. HEAT MODE---WITH ELECTRICAL HEATER AS BOOSTER
1)
MTV2 always off.
2)
If Tr <= Ts
ε
1 ºC, heat operation is activated, MTV1 is turned on. Electrical heater is turned on.
Indoor fan runs at the set speed.
3)
If Tr >Ts, heat operation is terminated, MTV1 is turned off. Indoor fan repeatedly runs at low fan
speed for 30 seconds and stops for 3 minutes.
4)
If Ti1<40 ºC, the electrical heater is turned on. If 40<= Ti1<45 ºC, the electrical heater is kept original
state. If Ti1>=45 ºC, the electrical heater is turned off.
5)
The range of Ts is 16~30 ºC
6)
Indoor fan speed can be adjusted for low, medium, high and auto.
7)
MTV1 will delay for 30 seconds before it is turned on.
8)
MTV1 will delay for 120 seconds before it is turned off.
iii. HEAT MODE---WITH ELECTRICAL HEATER AS PRIMARY HEAT SOURCE
1)
MTV2 always off.
2)
If Tr <= Ts
ε
1 ºC, heat operation is activated, MTV1 is off, Electrical heater is turned on. Indoor fan
runs at set speed.
3)
If Tr >Ts, heat operation is terminated, MTV1 remains off. Electrical heater is turned off. Indoor fan
repeatedly runs at low fan speed for 30 seconds and stops for 3 minutes and repeats.
4)
The range of Ts is 16~30 ºC
5)
Indoor fan speed can be adjusted for low, medium, high and auto.
iv. PRE-HEAT---WITHOUT ELECTRICAL HEATER
1)
If Ti1<36 ºC [or 28C depends on S5 setting], when MTV1 is on, indoor fan remains off.
2)
If Ti1>=38 ºC [or30C depends on S5 setting], when MTV1 is on, indoor fan runs at set speed.
3)
If indoor coil temperature sensor is damaged, pre-heat time is set for 2 minutes and indoor fan runs
at set speed.
v. PRE-HEAT---WITH ELECTRICAL HEATER
1)
Indoor fan will turn on after the electrical heater is turned on for 10 seconds.
vi. POST-HEAT---WITHOUT ELECTRICAL HEATER
1) If
Ti1
̱
38ºC, when MTV1 is off, indoor fan continues to run at set speed.
2)
If Ti1<36ºC, when MTV1 is off. Indoor fan runs 30 seconds and stop 3 minutes repeatedly.
3)
If indoor coil temperature coil is damaged, post-heat time is set for 3 minutes with indoor fan running
at set speed.
vii. POST-HEAT---WITH ELECTRICAL HEATER
1)
Indoor fan will turn off after the unit off for 20 seconds.
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