ZYMBO AATT Ventilarredo RX-200/ECO, Руководство по обслуживанию

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ZYMBO AATT
Ventilarredo Service Manual – English Pag. 77
7.4.3.5 Auto mode
This function is study to obtain maximum comfort for occupant people , for this reason our priority is to
have :
1)
Auto mode is selectable from wired wall pad or command on board.
2) Temperature set point must be selectable from user, range is 5-30°C. If PR setting is activated, range
is same as PR setting.
3) Cooling or heating mode will be decided from machine logic.
4) Fan speed will be decided from machine logic.
5) When mode is changed, the setting temperature is set with default
25 ºC.
6) Cooling/heating mode, the min working time is 30 minutes.
7) Every time the unit is turned on in auto mode, AUX1(Hot water free contact), AUX2(Cold water free
contact) and fan are off. MTV1(Chilled water motorized valve) and are MTV2 (hot water motorized
valve) off. After 5 second fan runs at min speed .
8) After 20 sec machine check Tr and compare with Ts , and check Ti1(Chilled water coil temperature).
Default setting temperature is 25 ºC.
9) If Tr(Room air temperature) > Ts(Setting tempe2 ºC cool operation is activated,
MTV1(Chilled water motorized valve) and AUX2(Cold water free contact) will be on . Unit
would work with Anti-hot air setting in cooling mode.
10) If ( Ts -2 °C ) ≤Tr ≤ ( Ts+2°C) , AUX2(Cold water free contact) , AUX1(hot water free contact)
MTV1(Chilled water motorized valve), MTV2(hot water motorized valve) are off , and fan on at min
speed ( speed 1 ) .
11) If Tr(Room air temperature) < Ts(Setting temperature)-2 ºC, heat operation is activated, MTV2(hot
water motorized valve ) and AUX1(hot water free contact) is on , and unit will work with Pre-heat
function.
12) After reaching set point, the unit would check setting temperature and room temperature again, and
work with next working mode.
13) Protection function is valid.
Important note : If operator changes fan speed during Auto Mode, machine would work like above cool
or heat logic with fan speed settled from operator. Operator can set only speed from 1 to 6 and Auto fan
speed, no static speed. When AUX2(Cold water free contact) is on, but no humidistat kit connected or RH
is <70% with humidistat kit connected, fan speeds are 6 Auto. If RH>= 70%, fans speeds are
3
rd
-6
th
Auto(3
rd
+6
th
speeds).
7.5 SLEEP MODE
1) Sleep mode can only be set in cool or heat modes only and trough command on board, or Saturn
wired wall pad .
2) In cool mode, after sleep mode is set, the indoor fan will run at low speed and Ts will increase 2 ºC
during 2 hours.
3) In heat mode, after sleep mode is set, the indoor fan will run at set speed and Ts will decrease 2 ºC
during 2 hours.
4) Changing of operation mode will cancel sleep mode.