Differential
Controller
43
10 Differential Controller
Note: Please follow the safety information and
read these instructions carefully before putting
the system into operation.
Figure 100: Grant GSD1 Differential Controller
10.1 General Information
Safety Information
Power Connection Regulations
Please install as per current electrical
regulations.
Your heating control system must be
installed and serviced only by
appropriately authorized specialists.
If this system is not installed
properly, there is a risk of fatal
or severe personal injury.
Warranty Conditions
If the system is not installed,
commissioned, serviced and repaired
professionally, this will render the
manufacturer's warranty null and void.
Important Text Passages
Important information is
highlighted with an exclamation
mark.
This attention symbol indicates
dangerous situations.
Installation
For information on connection of the
Differential Controller, see page 42.
Safety Information
Declaration of Conformity
This device corresponds to the
requirements of the relevant guidelines
and standards, if the corresponding
regulations and the manufacturer's
instructions are complied with.
Function
This controller enables the regulation of
various types of system:
1) Solar regulation
2) Solid fuel boiler regulation
The device is simple to operate and
easy to control due to the direct
temperature display in the first
operating level.
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10.2 Technical Data
Supply voltage 230 V AC
complying with ± 10%
DIN IEC 60 038
Power consumption Max 4 VA
Switching capacity 250 V 2(2) A
of the relays
Maximum current 6.3 A
on terminal L1´
Type of protection IP 40
complying with
DIN EN 60529
Protection class II, Totally
complying with insulated
DIN EN 60730
Power reserve of > 10 hours
the timer
Permitted ambient 0 to 50°C
temperature
during operation
Permitted ambient -30 to 60°C
temperature
for storage
Sensor resistances Multiplier
F1, F3 and F4: PT1000, 1kΩ
+/- 0.2% at 0°C
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