Twin Heat CPI 12 Guida

Instructions for Installation
CPI 12
Version 2.1 - march 2007
Please go trough the instructions, before installing!
Nørrevangen 7 •DK-9631 Gedsted •Phone +45 98645222 •Fax. +45 98645244
Mail: twinheat@twinheat.dk •Web: www.twinheat.dk

1
Table of contents
Lining up the stoker......................................................................page 2
Connection to heating surface.....................................................page 2
Connection to sprinkler system....................................................page 3
Connection to chimney ................................................................page 3
Electrical connection....................................................................page 3
Diagram 1 – Connection to heating surface.................................page 4
Diagram 2 – Connection to chimney............................................page 5
Diagram 3 – Electrical diagram 400V – 3 phase..........................page 6
Diagram 3.1 – Electrical diagram 230V – 1 phase.......................page 7

2
INSTALLATION
Lining up the stoker
NOTICE: the minimum measures in the “boiler room” must be kept, in
order to operate the fuel store as intended.
The stoker is delivered on a pallet, ready for installation.
The pallet with stoker is to be placed in the boiler room by means of a fork lift
truck, ore the like. When the stoker is placed in the boiler room, on the floor, it
must be blocked up to horizontal level. (Use a spirit level!)
The figure shows the minimum measures
(in mm.) that must be kept in the boiler
room, in order to operate the fuel store as
intended.
The boiler room must have an air inlet!
Connection to heating surface
See diagram 1
The water returning to the boiler must always be at least 60 – 65ºC hot when
using wood pellets and at least 65 – 70ºC when using grains or wood chips.
If the above is not respected the corrosion of the steel in the boiler can increase
and the life expectations will be reduced.
The boiler can bee connected to a closed expansion vessel, as well as to an
open expansion vessel.
(700)
200 (to waal)
400
(to wall)
Fig: Boiler room seen from above

3
INSTALLATION
Connection to sprinkler system
See diagram 1
The sprinkler system at the boiler must be connected to constant water supply
G½”, trough a shutoff valve. The connection piece is to be found at the backside
base.
Make sure that the supply pipe/hose is free of dirt ore the like!
When the system is connected and the water supply is open, it has to bee
tested. Disconnect the hose to the auger channel and test the sprinkler valve by
pressing the red hood, at button of the valve.
After testing the sprinkler system it is important to check that the valve is closing
properly! (Dirt ore the like, in the valve seat, can prevent this)
Connection to chimney
See diagram 2
The flue pipe must be insulated with a 50 mm fire resistant mat, to avoid
that the flue gasses are condensing in it.
It is highly recommended to mount a draught stabilizer on the flue pipe, ore
directly in the chimney. The draught stabilizer is to be adjusted to 10 Pa.
(See diagram 2)
Recommended chimney dimensions
Internal diameter chimney Height chimney
App. Ø130mm 4-6 metre above boiler
Electrical connection
See diagram 3 / 3.1
The connection must have its own separate electrical switch!
The boiler can be built for both 3x400V and 1x230V connection.
Check boiler data plate for electrical connection.

4
DIAGRAM 1 – FEB. 2004
Diagram 1 - Connection to heating surface
TWIN HEAT boiler shunt
The pipe by the temperature sensor
(Tf) is not included!
The temperature sensor(Tf) is to be
strapped on, to the pipe.
Shutoff valve V1-V3 Shutoff valve at: supply, return and supply cold water
3-ways thermostatic
mixing valve (shunt) V4 The “shunt” is to provide a homogenous temperature of
the return water, to the boiler (app. 60-70°C)
Air relief V5 Placed where needed
Safety valve 2,5 bar V6
Thermometer T1-T2
Temperature sensor Tf For regulating the mixing valve
Manometer M1 Manometer for boiler pressure
Pump P Circulating pump for boiler and heating surface
A
B
AB
Tf*
V4
T1
T2
P
Closed exp. vessel
Open exp. vessel

5
DIAGRAM 2 – FEB. 2004
Diagram 2 – Connection to chimney
The chimney must never be placed
directly on the stoker!
Fig. 2: Brick-build chimney
Cpi 12
Elbow Ø133x87° with mudhole
Draught stabilizer
Cpi 12
Cpi 12
Elbow Ø133x87° with mudhole
Draught stabilizer
Fig. 1: Module chimney (steel)

6
DIAGRAM 3
Diagram 3 – Electrical diagram 400V – 3 phase

7
DIAGRAM 3.1
Diagram 3.1 – Electrical diagram 230V – 1 phase
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