Honeywell EN2H-0221GE51 R0808 用户手册

Hydraulic Components 

SDC / DHC  

236 EN2H-0221GE51 

R0808 

High quality, expensive condensing boilers are used for the base 
load, especially with gas systems. During cold months, low-
temperature boilers are used for covering peak loads. It is 
necessary that an activated stage reversal only affect the base 
load boiler here. The peak-load boilers are excluded from the 
stage reversal. 

 

The configuration defines which peak load heat generator is the 
first one (all heat generators with addresses greater than or equal 
to the setting). 

The time-based stage reversal (see "Cascading" menu, 
parameter 05) only affects the connected base-load boiler 
(smaller address setting). 

The first peak-load boiler is not switched on until the base-load 
boilers are operating at 100%. 

If grouping was carried out via the configuration and the peak-
load boiler was in demand, a change of the leading group can be 
activated via a parameter. If this parameter is set to ON, the group 
of peak-load boilers take over the base load upon demand and 
the base-load boilers take over adjustment of the flow 
temperature. Further switching of stages is still only active for the 
actual base-load boilers.  

 

The heating circuits of the control device in which manual 
operation was activated, operate according to the manual 
function. The set demand value is forwarded to the energy 
management module of cascade control and adjusted to by the 
available boiler stages. 

 

This function works as described under "Emission measurement", 
with the following extensions: 

•  The effect on heating circuits is extended to all heating circuits 

of the system. 

•  Enabling of the heat generators (burner) is initiated at the 

same devices where emission measurement was activated.