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

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ZYMBO AATT
Ventilarredo Service Manual – English Pag. 71
5) Indoor fan speed can be adjusted with 6 Auto when no humidistat kit connected, or RH is
<70% with humidistat kit connected.
6) If RH is >=70% with humidistat kit connected, indoor fan would work with 3
rd
-6
th
Auto (3
rd
speed is the min speed).
7) When turned on, MTV1(Chilled water motorized valve) requires 90 seconds before it is fully open.
8) When turned off, MTV1(Chilled water motorized valve) requires 90 seconds before it is fully closed.
9) When the unit is turned off, indoor fan will delay for 5 seconds before it is turned off.
Anti-hot air setting in cooling mode
1) AUX1(Hot water free contact) always off.
2) If Til(Chilled water coil temperature exchanger temperature) >15 ºC
（
or depend from PR5 setting
）
,
indoor fan remains off. If Til could not reach 15 ºC for 40 minutes(or PR12 setting), LCD would
display error code: E6.
3) If Til(Chilled water coil temperature exchanger temperature)
≦
15 ºC(or depend from PR5 setting)
for 2 minutes, or Til
≦
2 ºC, indoor fan works as setting speed.
Low temperature protection of indoor coil
1) If Ti1(Chilled water coil temperature exchanger temperature)
≦
2 ºC for 2 minutes, AUX2 (Cold
water free contact) is off , MTV1(Chilled water motorized valve) is on . Indoor fan runs at Max
speed .
2) Above point is necessary to supply max warm coming from room air to water inside exchanger to
avoid water can freeze and broken pipes exchanger.
3) Display flash Alarm E7
4) If Ti1(Chilled water coil temperature exchanger temperature)
≧
5 ºC for 2 minutes, AUX2 (Cold
water free contact) is on. Indoor fan runs at set speed on while MTV1(Chilled water motorized valve)
remain on, no alarm code.
7.4.2.2 Fan mode
1) Indoor fan runs at the set speed while AUX1(Hot water free contact), AUX2(Cold water free contact),
MTV1(Chilled water motorized valve) are turned off.
2) Indoor fan speed can be adjusted with 6 speeds.
3) Operator can not set Ts, LCD only display room temperature.
7.4.2.3 Heat mode
Heat mode
When unit is selected with cool only mode(PR1 setting), heat mode would be invalid.
1) AUX2 (Cold water free contact) is always off.
2) If Tr(Room air temperature)<= Ts(Setting temperature)
﹣
1 ºC, heat operation is activated,
MTV1(Chilled water motorized valve) is on and AUX1(Hot water free contact) is On after 90
seconds , fan is on or off following pre-heat function .
3) If Tr(Room air temperature) >Ts(Setting temperature), heat operation is terminated, MTV1(Chilled
water motorized valve) and AUX1(Hot water free contact) are turned off. Indoor fan would run as
POST-HEAT function.
4) The range of Ts(Setting temperature) is 5~30 ºC
。
If PR setting is activated, Ts range is same as PR
setting.
5) Indoor fan speed can be adjusted with 6 Auto + static mode .
6) When turned on, MTV1(Chilled water motorized valve) requires 90 seconds before it is fully open.
7) When turned off, MTV1(Chilled water motorized valve) requires 90 seconds before it is fully closed.