CHAFFOTEAUX PIGMA Gal Evo, Руководство по обучению

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Page. 37 of 73
Training manual :PIGMA Gal Evo
4.11
HEATING EXPANSION VESSEL
Expansion vessel consists of two distinct parts assembled, made from metal sheet 1,8 mm thick. Inside, the
tank is separated through a SBR rubber membrane (see, pictures shown below).
The expansion vessel is located in the frame behind the boilere. Inflating pressure is 1 bar. Maximum
capacity of the system is about 175 litres.
A valve allows the u technician to make a yearly check of inflating pressure in the expansion vessel.
4.12 SANITARY FLOW RATE
When set to sanitary mode, because water flow rate is higher than 1,6 litres minute, the turbine fitted inside
the sanitary flow meter transfers through a « reed » relay the command to the electronic PCB to initiate the
ignition sequence.
A sanitary filtre is embodied in the flow meter with a view at protecting the turbine and the sanitray
exchanger from penetration of impurities. To prevent any delayed start up caused by surge arising in the
cold water pipe network, a time control can be organised through parameter
2 52 within 0.5 sec and 20 sec
( 0.5 sec by default). With the aid of parameter 8 25 and key INFO it is possible to have a reading of sanitary
water flow rate.
Operation check data of turbine by measuring voltage on CN14 of the electronic PCB is :
- 0Vdc = no flow rate
- 5Vdc = no flow rate
- between 2Vdc and 3Vdc = flow rate
ON for a flow rate > à 1,6 l/min
OFF for a flow rate < à 1,3 l/min
Flow rate limit
8 l/min 25 kW
10 l/min 30kW
Technical Data
Capacity 8 litres
Maximum temperature 90°C
Inflating pressure 1 bar
Maximum pressure in primary circuit 3.0 bar
Reed relay
Air
Water