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4.  CONFIGURATIONS

4.1 Setting the Dip Switches

Before closing cover,  the mode must be selected using the dip switches.

Important:

Setting the dip switches incorrectly will cause the

the humidistat to malfunction.

Dip Switch Settings

Dip1

Dip2

Dip3

Dip4

ON       OFF

OFF      OFF

ON       OFF

OFF       ON

Tab. 4.a

4.2 Setting Parameters 

The parameters for all operating modes feature a default value.  These 
values can be restored by running the “Factory set” operation.  See  the   

table  of parameters for details of the default values and settings.

Initially at least the following parameters need to be checked/set:

SET  POINT:

 erent  set  points 

are  used.  To  set  these,  access  (SET  button  –  5  seconds)  the  mode 
for  setting  the  parameters  and  set  the  corresponding  values.
For  the  current  mode  only,  the  value  can  be  accessed  directly 

set point for humidity control

  –

  –

Clock, 

TIME BANDS Prg/

(clock):

Press the corresponding button 

to display and if necessary set the default duration of the change mode 
timer, display or set the RTC clock and set the Day and Night time bands. 

rtC 

clock hh:mm

SLP

manual changeover duration

def. 8 hours

dAy

start day band

def. 08:00

nIt

start night band 

def. 20:00

Once  having  displayed  the  desired  parameter  using  the  UP/

Edit  the  value  using  the  UP/DOWN  buttons  and  then  press  SET. 
To 

exit 

the 

menu, 

press 

the 

PRG 

button 

again

 :

Select parameter rtC using PRG/CLOCK and set the value using the 

DOWN button
When reaching 00:00 using the DOWN button the function will be 

 .

  the operating mode is always daytime, 

and  consequently  only  the  daytime  set  points  are  used,  the  night 
settings  are  only  used  when  the  NIGHT  button  is  pressed,  manually 
changing mode. 
The same is true for models without the RTC function.
When  the  time  bands  are  set,  the  CLOCK  symbol  is  shown  on  the 
display.           

PARAMETERS:

  check/set  the  other  parameters  (dIF,  dS1,...)  based  on 

the mode used.

Note: 

Note: 

  If AUTO humidity mode is enabled, the humidity setpoint 

is reduced to 10% when the outdoor temperature is greater than
50° F. Disable AUTO for operation in warm outdoor temperatures. 

set  of  parameters  will  be  loaded  by  the  GFX50  when  changing  the 

7

4.3 AUTO humidity control

In addition to the modes featured by the control algorithms, the humidity 
can  be  controlled  automatically,  based  on  the  reading  of  the  outside 
temperature  sensor.  The  aim  of  this  type  of  control  is  to  simplify  the 
setting  of  the  GFX50,  changing  the  humidity  control  according  to  the 
outside environmental conditions and therefore minimize the discomfort 
of the user when moving into/out of the air-conditioned environment. 
This operating mode is selected by setting parameter AUT.

According to the level set using the up/down buttons, with a value from 

To disable this operating mode, in the parameters menu set the value of 
Aut = 0.   

temperature sensor is installed.

code

description of the parameter

range

def.

UOM

AUt 

Humidity set point level compensated according to the outside temperature

If set to OFF, the mode is disabled.
Setting one of the levels shown in the table, the controller independently sets a humidity set point in relation to 
the outside temperature measurement.

OFF

1H to 7H

OFF

-

Table: humidity set point according to the setting of AUT (outside temperature)

Level 

Below: -23 °C

-23 °C to -17 °C

-17 °C to -12 °C

-12 °C to -6 °C

-6 °C to -1 °C

-1 °C to 4 °C

4 °C to 10 °C

Above: 10 °C

Level 

Below:     9 °F

   -9 °F   to    1 °F

    1 °F   to  10 °F

 10 °F to 21 ° 

21 °F to 30 °F

30°F to 39° 

39°F to 50 °F

Above: 50 °F

1

10%

10%

10%

10%

15%

20%

25%

25%

2

10%

10%

10%

15%

20%

25%

30%

30%

3

10%

10%

15%

20%

25%

30%

35%

35%

4

10%

15%

20%

25%

30%

35%

40%

40%

5

10%

20%

25%

30%

35%

40%

45%

45%

6

10%

25%

30%

35%

40%

45%

45%

45%

7

10%

30%

35%

40%

45%

45%

45%

45%

Tab. 4.b

Summary of Contents for GFX50

Page 1: ...GFX50 Residential Humidistat User manual Revision 1 1...

Page 2: ...vironments that comply with the temperature and humidity limits do not install the device in particularly hot environments Too high temperatures may reduce the life of electronic devices damage them a...

Page 3: ...buttons 6 3 2 Description of the buttons 6 4 CONFIGURATIONS 7 4 1 Setting the Dip Switches 7 4 2 Setting Parameters 7 4 3 Auto Humidity Control 7 4 4 Sensor Calibration 8 4 3 Additional Functions 8 5...

Page 4: ...nections are complete before Note For the purposes of electrical safety EN60730 1 once the controller has been installed replace the plastic locking tab in the humidistat base Accessories and dipswitc...

Page 5: ...connectioins See Fig 2 b Note the factory See Elite Steam Manual GFX50 ON D P 1 2 3 4 DIPSWITCHSETTNGS ON OFF OFF ON Fig 2 c GFX50 terminal 1 and 2 See Fig 3 x 2 3 4 Placement of Remote Outdoor Tempe...

Page 6: ...ttons to increase or decrease the time Press a second time to exit and return to the main menu If sleep mode is already active pressing the button shows the time remaining on the timer E g if in Night...

Page 7: ...When the time bands are set the CLOCK symbol is shown on the display PARAMETERS check set the other parameters dIF dS1 based on the mode used Note Note If AUTO humidity mode is enabled the humidity s...

Page 8: ...mer This value can be changed at any time To exit the menu press the NIGHT button again 5 FUNCTIONS 5 1 H humidity control This type of control is used to send a start signal to a humidifier or dehumi...

Page 9: ...re OFF 1H to 7H OFF 7 ALARMS AND SIGNALS Note three dashes are displayed 7 1 Table of alarms code on display ect EE system memory error manual stops all outputs Eth temperature humidity sensor fault a...

Page 10: ...86x36mm Tab 5 a 8 2 Wiring n o i s r e v d e t a l o s i n o N t u p n i l a t i g i D direct connection of the voltage free contact contact closing current 3 to 5 mA Isolated version with external po...

Page 11: ...Note...

Page 12: ...NERAL FILTERS INC 43800 GRAND RIVER AVE NOVI MICHIGAN 43875 1115 WWW GENERALAIRE COM CANADIAN GENERAL FILTERS LTD 400 MIDWEST POAD TORONTO ONTARIO M1P3A9 WWW CGFPRODUCTS COM Agency Form GFX50 05 Rev 1...

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