Crestron electronic 3 Benutzerhandbuch

        

Installation & Operation Manual

The HWG Mode is programmed to heat an indirect hot 
water tank.  When a tank thermostat or a tank sensor initiates 
a call for heat, the SMART TOUCH control will turn on the 
HW pump and turn off the boiler pump (if running).  If the 
system pump is running, it will remain on.  When the HW 
call for heat ends, and there is no space heating call for heat, 
the HW pump will continue to run for a period of time.  This 
pump delay is set at the factory to 60 seconds.  If a shorter 
or longer delay is desired, the appropriate parameter in the 
control must be changed.  See the Crest Service Manual for 
a detailed explanation of this procedure.  If there is an active 
space heating call for heat, then the boiler pump will be 
turned on and the HW pump will be turned off.

When in the HWG Mode, the control will modulate to 
maintain the outlet  temperature to a set point.  This set point 
is set at the factory to 180°F.  If a different set point is desired, 
the appropriate parameter in the control must be changed.  
See the Crest Service manual for a detailed explanation of 
this procedure.

If a tank sensor is installed, the HWG heat demand will start 
when the tank temperature drops 6°F below the tank set 
point, and stop when the tank temperature reaches the tank 
set point.  The tank set point is set at the factory to 120°F 
(49°C).

Press the following buttons to program the clock:

After pressing SETUP, the Password Screen will appear. 

 

Entering the correct password will allow access to all Installer 
Level adjustable parameters.  Press ENTER without a 
password to access the User Level parameters.

The SMART TOUCH control has a built-in clock that it uses 
for its night setback feature and for logging events.  This 
clock must be set when the boiler is installed, and anytime the 
boiler has been powered off for more than one day.  Use the 
following procedure to set the clock:

1.  To set the clock, highlight Clock using the arrows and 
 

press the SELECT button.  Use the left and right arrows 

 

to select hours, minutes, AM/PM and the up and down 

 

arrows to set. 

2.  To set the date, highlight Date using the arrows and 
 

press the SELECT button.  Use the left and right arrows 

 

to select the day of the week and the up and down 

 

arrows to set. 

The internal clock does not adjust for 
Daylight Savings Time and therefore, will 
require a manual adjustment.

When installed in a Cascade system, the individual controls 
must be programmed for cascade operation. To program the 
cascade parameters, access the Cascade Menu found in the 
Setup Menu by pressing the following buttons:

 

After pressing SETUP, the correct installer password MUST BE 
entered.

1.  Once in the Cascade Setup Menu select the appropriate 
 

parameter using the arrows and press the SELECT button.   

 
2.  The description of the selected parameter and its current 

setting will appear at the bottom of the screen.

3.  To adjust the parameter, press the + or - buttons to change 
 

the value being displayed.

4.  Make the correct adjustments and then press the SAVE 
 button.

5. Once 

all 

the parameters have been adjusted press the BACK 

 

button.  This will return you to the Cascade Screen.

 
Note:  The SAVE button must be pressed to ensure proper 
programming of the controls.  Failure to press the SAVE button 
will require all changes to be reprogrammed.

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