Danfoss ThermoDual FLS COMBI Installation guide

Brand: Danfoss

Model: ThermoDual FLS COMBI

Type: Installation guide

Assembly / System-installation:

Legend:

1) Drinking water (cold)

2) Drinking water (warm)

3) Circulation

4) Heating, supply

5) Heating, return

HEL Heat exchanger

HPU Heating pump

CPU Circulation pump

SFV Safety valve

ECD Electronic controller DHW

D Drain pipe

H Holder set

I1 Insulation part 1

I2 Insulation part 2

I3 Insulation part 3

IP Pump insulation

ECD

HEL

SFV

HPU

CPU

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Quick Guide ThermoDual®-FLS-COMBI

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Holder set installation:

Fix two hangers to the wall with attached screws and

dowels. Make sure, that the attached dowels are suitable

for the type of wall; if necessary, replace the dowels with

suitable types in the same size. Aware of the selection of

the place, at least on the right side approximately 50 cm

space for disassembly of the heat exchanger must remain.

Upper planes of hangers should be horizontal and at the

same level.

Wall mounting:

Place the system in the center and hang it with the angled

part of the base plate. After that secure the system with the

enclosed metric screws and press against the wall.

Check if the system is securely xed and cannot be moved.

Insulation removal:

First remove pumps insulations (IP) by pulling them out

from the sockets. These parts are exible and can be

removed easier by pressing them.

2 | © Danfoss | 2018.01

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Quick Guide ThermoDual®-FLS-COMBI

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Gently remove main part of insulation (I1) by pulling it in

the direction shown on drawing 4.

Now you can remove other two insulation parts

(I2 and I3) by pulling them in the direction down or up

shown on drawing 5.

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Quick Guide ThermoDual®-FLS-COMBI

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Heat exchanger disassembly and replacement:

Before you start any activities perform actions shown on

gures 3 to 5 (Insulation removal) and secure, that all shut

o valves are closed and substations

is drained and cooled down.

Attention: Risk of burns!

To remove the heat exchanger, you need to remove rst

the 4 nuts /couplings and then the external Seeger-Ring

with special Pliers (this tool is not provided with the

substation) like visible in drawing 6.

Loosen now the pipes/ttings from the Heat exchanger

connections with a suitable tool (wrench etc.); using of pipe

pliers should be avoided, because the

nuts can be destroyed.

After loosening the 4 couplings, the Heat exchanger (HEL)

can be moved to the side (to the right)

as shown in picture 7.

The re-assembly takes place after cleaning the device or

exchange in reverse order. We recommend replacing the 4

gaskets G1 “ at the connections.

Pay attention to suitable seal types, especially materials at

the drinking water connection need to

be comply with applicable regulations and norms

(e.g. KTW / W270 / Elastomer Guideline).

Recommended types of seals:

Heating side: KLINGER®top-sil-ML1, Multilayer 30 × 23mm

(torque 30 .. 40 Nm)

Domestic water side: EPDM A-KT 90-00, 30 × 23mm

(torque 25 .. 30 Nm)

HEL

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Quick Guide ThermoDual®-FLS-COMBI

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Danfoss ThermoDual FLS COMBI Installation guide

Danfoss ThermoDual FLS COMBI Installation guide

Danfoss ThermoDual FLS COMBI Installation guide

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