Polar Electro 520 CTH DB 2020, Instruction Book

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Heating system
Air nipple Air nipple right front
Automatic air vent, boiler
Venting the heating system
When the system has been emptied of all fluid, it must
be bled after being filled again. If the heat only goes a
metre or so into the pipes from the boiler, this is a good
sign that there is air in the system.
The venting takes place through the automatic air vent on
the boiler and the air nipples in the caravan (see ”
Loca-
tion of the air nipples
” ).
The air nipple is connected to a hose or fixed to a rubber
connection on the heating system. In some models the hose
is attached with a staple.
When venting, the air nipple must be up in a horizontal
position.
More about venting in the Alde manual supplied with
the caravan.
Consumption, fluid in the system
520 approx. 11,3 litres
560 approx. 11,8 litres
590 approx. 12,1 litres
620 approx. 12,4 litres
650 approx. 12,7 litres
680 approx. 13,0 litres
730 approx. 13,4 litres
840 approx. 14,1 litres
Location of the air nipples
Caravan Placing
520-560 CTH
560 CTH VK
L + R front
L + R front
520-590 CTV
L + R front + Wardrobe
left side
590 CTH / CTH VK L + R front
560 LB
560 LB Cinderella
L + R front + Washroom
L + R front + Washroom
590 LB / BK
590 LB / BK Cinderella
L + R front + Washroom
L + R front + Washroom
590 TR LB / DB
590 TR LB / DB Cinder .
L + R front
L + R front + Washroom
620 LB / BK
620 LB / BK Cinderella
L + R front + Sink
L + R front + Sink
+ Bed box L
620 TR LB
620 TR LB Cinderella
L + R front
L + R front + Washroom
620 TR TDS
620 TR TDS Cinderella
L + R front
L + R front + Washroom
620-680 TR DB
620-680 TR DB Cinder.
L + R front
L + R front + Washroom
650 TDS BK
650 TDS BK Cinderella
L + R front + Bed box
L + R front + Bed box
650-730 TR LB / LB VK
/ TDS / TDS VK
650-730 TR LB / LB VK
/ TDS / TDS VK Cinder.
L + R front
L + R front + Washroom
620-730 CTVX L + R front
730 TR DB / DB VK
730 TR DB / DB VK
Cinder.
L + R front + Bed box
L + R front + Bed box
+ Washroom
730 BR
730 BR Cinderella
L + R front + Washroom
L + R front + Washroom
840 TRX
840 TRX Cinderella
L + R front
L + R front + Washroom
840 BR / BR Cinderella L + R front + Washroom +
Bed box L rear
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