Bedienungsanleitung Alde Comfort 2928 (Seite 13 von 32) (Deutsch, Englisch, Holländisch, Französisch, Schwedisch, Finnisch)

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Chapter Page

How the boiler is constructed 131.

Technical data 131:1

How the boiler works 132.

The functions of the control panel 132:1

Starting the LPG boiler 142:2

Shutting down the LPG boiler 142:3

Setting for maximum comfort 142:4

Setting the room temperature 142:5

Circulation pump 142:6

Electrical heating 142:7

External start 143.

Water heater 154.

Maintenance of the heating system 155.

Bleeding the heating system 155:1

Useful facts about LPG 156.

Troubleshooting 167.

Guarantee 168.

Read these instructions carefully before you use the

boiler.

The instructions for use are approved in accordance

with CE no. 048 AO-0007 for LPG boiler type 2928.

Data plate and production number are located inside

the metal shell beside the expansion vessel.

HOW THE BOILER IS 1.

CONCTRUCTED

The boiler operates with what is known as constant

temperature, i.e. there is always heated liquid in the

boiler to circulate in the system when the room thermo-

stat calls for heat. In other words there is no time lag

when heat is most needed.

From an air intake on the roof ue terminal, the com-

bustion air is passed through an aluminium hose

into the combustion chamber. The gas valve and the

burner assembly are attached to an easily remov-

able plate screwed to the combustion chamber at the

bottom of the boiler. The water jacket, which consists

of an inner and an outer pipe, is located above the

combustion chamber. The space between these pipes

constitutes the reservoir. Inside the inner pipe there

is a ame damper which consists of a folded sheet

of metal. Its task is to convey the hot exhaust gases

from the burner out towards the water jacket so that

the water is heated. From the top of the water jacket, a

pipe goes up to the expansion vessel. In the expansion

vessel there is a 12-volt pump which circulates the

heated liquid in the system. On the front of the boiler is

the control panel with thermostat knob, cut-out, power

intake and changeover switch. At the top of the boiler

there is a terminal block for making the electrical con-

nection to the boiler. Beside the boiler, a ventilation

duct is attached that takes in fresh air from outside and

conveys it into the boiler but outside the combustion

part itself. The fresh air is heated by the body of the

boiler and convected through the ventilation grille in

the front panel out into the room.

Technical data1:1

Gas: Propane Butane

Power: 5,8 kW 6.7 kW

Gas consumption: Max 420 g/h Max 480 g/h

Gas pressure: I

28-30/37 mbar I

3B/P

30 mbar

Liquid volume (glycol water) in boiler: 2.6 l.

Liquid volume (glycol water) in immersion heater: 1.0 l.

System temperature in the boiler: 35-75

HOW THE BOILER WORKS2.

When the room thermostat calls for heat, the circula-

tion pump starts. The liquid in the system starts circu-

lating, and cold water comes into the boiler. The sen-

sor on the water jacket senses that the water is colder

than the temperature set on the boiler thermostat.

The main burner ignites and heats up the water that

circulates round the system. When the heat inside the

vehicle has reached the temperature set on the room

thermostat, the circulation pump stops. The sensor

on the boiler senses that the water has reached the

temperature set on the boiler thermostat. It shuts off

the main burner and goes down to a pilot ame. When

the water temperature has fallen a few degrees in the

boiler, the main ame is lit again. In this way there is

always heated water when the room thermostat calls

for heat.

The functions of the control panel 2:1

(g 1)

Normal position for immersion heater. The heating A.

element is controlled by the room thermostat.

Constant position for the immersion heater. The B.

heating element is controlled by the immersion

heater’s thermostat. The changeover switch should

be in this position when the water heater is in use.

1000 watts power on the immersion heater.C.

2000 watts power on the immersion heater. D.

240-volt circulation pump on the immersion heater.E.

12-volt circulation pump on the boiler.F.

Normal position for 12 and 240-volt circulation G.

pumps. The selected pump starts and stops as

indicated by the room thermostat.

Constant position for 12 and 240-volt circulation H.

pumps. The pump runs constantly and the room

temperature is regulated by the boiler’s thermostat

knob, in that the boiler’s system temperature is

adjustable. The constant position uses for exam-

ple when there are many persons in the caravan.

If one sits near the room thermostat it can switch

the circulation pump off, with cold areas near the

windows and oor as a result. In this position the

pump is constantly on and coldness is avoided.

Cut-out 1 A fuse.I.

Power intake 12 V DC auxilary sockel (used for J.

external start etc. See chpt 3:0).

Warning light for ignition spark.K.

Thermostat knob.L.

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