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11

Dehumidification process 

 

If (Dhu LCK) 

Dehumidification Lockout Functions

 is set to 

On

 (Enabled): 

 

Dehumidification process will only be allowed when the thermostat is in cooling mode (System Mode  = Cool or System Mode = 
Auto and effective mode at the thermostat is cool). If there is a dehumidification demand and the fan is OFF, the fan is first 
turned ON and the dehumidification output is then activated. 
 
Other than having reach the dehumidification setpoint, the following events can stop the dehumidification process at any time:  

 

RH sensor is out of range 

 

System Mode is switched to Off, Heat or System Mode = Auto and effective mode at the thermostat is Heat 

 

The room temp drops below the cooling setpoint minus the deadband value 

 

The Outside air temp is below the Dhu OALK parameter 

 
If (Dhu LCK) 

Dehumidification Lockout Functions

 is set to 

Off 

(Disabled):

 

 
Other than having reach the dehumidification setpoint, the following events can stop the dehumidification process at any time:  

 

RH sensor is out of range 

 

System Mode is switched to Off 

 

The Outside air temp is below the Dhu OALK parameter 

 
Dehumidification process is allowed when the thermostat operates in all system mode except Off. If there is a dehumidification 
demand. If the fan is OFF, the fan is first turned ON and the dehumidification output is then activated. 
 
There is NO active temperature lockout protection in this mode. If the dehumidification process causes the room temperature to 
rise or fall, the thermostat will react by either activating the cooling or heating outputs based on it’s current system mode 
settings. 
 

E) System mode setting 

 

Sys mode 
set   Y/N 

 

This menu is accessed to set system mode operation 

Use 

▲▼

 to set value, Yes key to confirm 

 

Sys mode 
auto 

Automatic mode 

Automatic changeover mode between heating and cooling operation 

Sys mode 
cooling 

Cooling mode 

Cooling operation mode only 

Sys mode 
heating 

Heating mode 

Heating operation mode only 

Sys mode 
off 

Off mode 

Normal cooling or heating operation disabled 

If enabled in installer parameters, only the automatic heating frost protection at 50 °F ( 10 °C ) is enabled  

 
 
 
 
 
 
 

F) Fan mode setting 

 

Fan mode 
set  Y/N 

 

This section of the menu is permits the setting of the fan mode operation. 

Use 

▲▼

 to set value, Yes key to confirm 

 

Fan mode 
On 

On fan mode 

Fan is on continuously, even when system mode is OFF. 

Fan mode 
Auto 

Automatic fan mode 

Fan cycles on a call for heating or cooling for both occupied & unoccupied periods. 

Fan mode 
Smart 

Smart fan mode 

During occupied periods, fan is on continuously.  In unoccupied mode, fan cycles on a call for heating or cooling. 
This selection is available on all models with a communication module, on all stand-alone programmable models 
or if DI1 or DI2 is set to RemNSB on stand-alone non-programmable models 

 

Содержание VT7607B5x28(X)

Страница 1: ...dy VT6x7 Series LonWorks Integration Guide VYKONStat PIR Application Guide VYKONStat PIR Cover Assembly Installation Guide VYKONStat Wireless Controller Application Guide Models Available Application...

Страница 2: ...2...

Страница 3: ...er alarm will be displayed on the thermostat LCD screen when the input is energized It can be tied to a differential pressure switch that monitor filters Rem NSB remote NSB timer clock input Will disa...

Страница 4: ...push on it until the tabs lock it 10 Strip each wire 1 4 inch 11 Insert each wire according to wiring diagram 13 Gently push back into hole excess wring Fig 5 14 Re Install wiring terminals in correc...

Страница 5: ...internal wiring Jumper J1 T1 24 Vac Cool Stage 2 Y2 Y1 Jumper J1 See note 1 previous page Fan RC G C Heat Stage 1 W1 RH W2 Auxiliary Output Field contact Com 24V Remote Outdoor Sensor Digital Input 0...

Страница 6: ...hermostat Remote humidity sensor accessories Model no Description VH2020W1028 Wall mounted humidity sensor VH2020D1028 Duct mounted humidity sensor VH2020W1028 remote wall mounted room humidity sensor...

Страница 7: ...e d 1 2 0 0 p m Time Un o c c u p 1 2 0 0 p m Time Oc c u p i e d d a y Y N Oc c u p i e d 1 2 0 0 p m Time Un o c c u p 1 2 0 0 p m Time Oc c u p i e d d a y Y N Oc c u p i e d 1 2 0 0 p m Time Un o...

Страница 8: ...122 F indicates a shorted sensor Associated functions such as mode lockouts are automatically disabled A minimum range status 40 C 40 F is not displayed and indicates a opened sensor or a sensor not...

Страница 9: ...increase temperature setpoint and to adjust the desired values when programming and configuring the thermostat When left unattended for 45 seconds the display will resume automatic status display scr...

Страница 10: ...will be prompted with the present mode Heating or Cooling of the thermostat and its setpoint The Up arrow key will increment the setpoint by 0 5 degree F or C The Down arrow key will decrement the set...

Страница 11: ...ehumidification output is then activated There is NO active temperature lockout protection in this mode If the dehumidification process causes the room temperature to rise or fall the thermostat will...

Страница 12: ...00 00 AM Use To set value Unoccup 00 00 AM Use To set value Sets Event 2 Unoccupied time Will activate unoccupied setpoints Use to set value Yes key to confirm Typical examples of a 2 event office sc...

Страница 13: ...e Will activate unoccupied setpoints Use to set value Yes key to confirm Ex 1 Four event retail establishment schedule Event Period 1 Event 1 Period 1 Event 2 Period 2 Event 3 Period 2 Event 4 Setpoin...

Страница 14: ...3 hours Use to set value Yes key to confirm Schedule resume Resume regular scheduling cancels the permanent hold and re enables the regular programming as set per internal scheduling or as per remote...

Страница 15: ...orking address Default value 254 Range is 0 to 254 Conditional parameter to BACnet MS TP models VT76xxX5x28B Conditional parameter to Wireless models VT76xxX5x28W This parameter will only appear when...

Страница 16: ...ut the menu part related to scheduling is disabled and no longer accessible Open contact occupied setpoints Closed contacts unoccupied setpoints RemOVR Temporary override remote contact Disables all o...

Страница 17: ...32 C Maximum occupied unoccupied heating setpoint adjustment Heating setpoint range is 40 to 90 F 4 5 to 32 0 C Cool min Minimum cooling setpoint limit Default value 54 F 12 C Minimum occupied unoccup...

Страница 18: ...or On or Auto fan mode When selecting Off the fan terminal G when heating stages terminals W1 W2 are solicited will not be energized The fan in this case will be controlled by the equipment fan limit...

Страница 19: ...toggles from occupied to unoccupied after the last movement has been detected by the PIR Range is 0 5 to 24 0 hours in 0 5 hour increments 2 4event Number of events configuration Default value 2 even...

Страница 20: ...network value is transmitted to the thermostat See RH LT RE Sp From 20 F up to 55 F 6 5 C to 13 C HL Sp RH High limit setpoint Default value 85 RH High humidity limit in the supply Only valid if a 0 1...

Страница 21: ...et that can be added subtracted to actual displayed humidity by 15 0 RH This calibration applies to the internal humidity sensor if no remote humidity sensor is connected This calibration applies to t...

Страница 22: ...e 8 RE Sp was set to 20 therefore the humidity setpoint dropped from 45 to 20 If you don t want to use this feature set the RE Sp parameter to 90 RH High limit humidity sensor The VT76x7 series includ...

Страница 23: ...etpoint mode for the new setpoint to be kept and memory and used all the time 2 Go to the Set temperature menu 3 The last prompt is setpoint type Set it to Permanent setpoint Wrong mode selected Selec...

Страница 24: ...erify wiring Digital display shows missing digits or erratic segments Defective display Replace thermostat RH sensor is out of range Verify the remote RH sensor or the internal RH sensor System Mode i...

Страница 25: ...0 Vdc into 2K resistance min Humidification analog output accuracy 3 typical Wire gauge 18 gauge maximum 22 gauge recommended Dimensions 4 94 x 3 38 x 1 13 Approximate shipping weight 0 75 lb 0 34 kg...

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