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49
49
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2 System
Selecting the system
Each system has pre-programmed options and adjustments which can be activated or
changed respectively if necessary. Select the system first (see chap. 3 on page 36).
Selecting the hydraulic variant
A selection can be made between representations with or without integrated heat
exchangers (see chap. 2.6 on page 9).
External heat exchanger
This function is used to link loading circuits that are separated by an external heat
exchanger.
The reference sensor as well as the reference relay can be selected.
The relay is energised if one of the selected stores is being loaded and there is a
temperature difference between the sensor of the corresponding store and the
sensor of the external heat exchanger.
The relay is switched off if this temperature difference falls below the adjusted
switch-off difference.
In systems in which stores are equipped with their own loading pumps, the relay
“external heat exchanger“ controls the primary circuit pump.
The heat exchanger is protected by a non-adjustable antifreeze function.
SYS 2
PUSH
SYS
Basic system
Adjustment range: 1 … 27
Factory setting: 1
VAR
Hydraulic variant
Adjustment range: 1 … 3
Factory setting: 1
OEXHX
External heat exchanger option
Selection: ON / OFF
Factory setting: OFF
OEXHX
PUSH
BACK
PUSH
BACK
PUSH
HXSEN
Sensor
Adjustment range: 3 … 5
Factory setting: 3
HXREL
Relay
Adjustment range: 2, 3
Factory setting: 2
DTHXO
Switch-on temperature
difference
Adjustment range: 1.0 … 50.0 K
Factory setting: 6.0 K
HXST
Store
Adjustment range: 1 / 2 / 1-2
Factory setting: 1
DTHXF
Switch-off temperature
difference
Adjustment range: 0.5 … 49.5 K
Factory setting: 4.0 K
OK
OFF
ON
2
Adjustment level
3
Summary of Contents for DeltaSol SL
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