Apartment transfer station

CAT-2-Convert

Maximum readiness for the future when replacing gas boilers in multi family houses

The CAT-2-Convert is the ideal solution for challenging renovation projects in multi-unit residential buildings. Specially developed for apartments that were previously equipped 
with decentralised gas boilers.

CAT-2-Convert37
CAT-2-Convert63

Developed for ultimate domestic hot water convenience alongside maximum hygiene and simple billing of consumption. Optimised for heat pumps yet still independent of the primary heat generator (e.g. district heating, hybrid, etc.).

What do you want to know?

Six good reasons to choose the

CAT-2-Convert apartment transfer station

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Developed for the replacement of gas boilers

The precise dimensioning to fit the boiler size and connection arrangement enables a quick and uncomplicated replacement. A range of versions allows maximum flexibility without compromises on domestic hot water comfort and hygienic safety in each individual project.

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Optimised for heat pumps but without technology restrictions

With the CAT-2-Convert, investors, lessors and planners can be sure of an installation that is ready for the future. Optimised for heat pumps (with optional E-Module or 63-kW plate heat exchanger with only 2 K spread), it can also be flexibly combined with hybrid systems and district heating, for example. Switching the primary system in the future will pose no difficulties.

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Quick and precise with minimal pressure losses

The tried and tested electronic control, known from our boiler technology, provides fast and precise domestic hot water performance while ensuring minimal pressure losses.

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Simple and flexible installation

The primary connections located at the top of the unit are practical and ideal for installation in a decommissioned chimney. Variable primary connections (conversion from top to bottom via accessories) as well as the Plug&Seal connector system ensure optimal installation conditions.

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Easy operation and commissioning

The unit is fully preconfigured, and parameters can be adjusted on the standard touch display if needed. The interface is available at any time for setting a weekly time program or for swift troubleshooting.

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Safety and reliability made in Germany

The attractive standard cover with IPX4D protection and additional integrated safety functions such as differential pressure regulator and summer bypass ensures absolutely reliable, safe operation in residential units. The standard dirt trap in the heating return protects against residues from old pipes.

Specifications

Power (Flow prim. 65°C, TWW 10/45°C)
(kW)
CAT-2-Convert 37
CAT-2-Convert 63
Max. DHW flow rate incl. throttle orifice / without throttle orifice
l/min
12/15,2
12/25,9
Heating output
kW
10
15
Max. flow rate primary
l/min
12,7
18,0
Minimum supply pressure primary
kPa
36
44
Pressure loss WOLF heat meter (HM) in the primary circuit (consider pressure loss when using heat meter)
kPa
15
15
Total supply pressure incl. heat meter
kPa
51
59
Pressure loss DHW at 12 l/min / at max. DHW flow rate
kPa
110/50
110/84
Heating pressure level
PN
6
6
Drinking water pressure level
PN
6
6
Secondary circuit pump head
m
6
6
Connection dimension
Female thread
3/4"
3/4"
Max. torque union nut G 3/4"
Nm
35
35
Max. torque union nut G 1"
Nm
40
40
Max. torque union nut plate heat exchanger
Nm
11
11
Version CAT-2-Convert 37
Drinking water temperatures
°C
10/45
10/45
10/50
10/50
Primary HTG
FL-°C
65,0
50,0
65,0
55,0
Primary HTG
RTN-°C
16,8
24,0
16,5
20,3
Primary HTG
l/min
11,1
12,7
11,9
12,7
Secondary DHW*
l/min
15,2
9,3
13,3
12,5
Power
KW
37,0
22,6
37,0
30,4
Version CAT-2-Convert 63
Drinking water temperatures
°C
10/45
10/45
10/45
10/50
10/50
Primary HTG
FL-°C
65,0
50,0
47,0
65,0
55,0
Primary HTG
RTN-°C
14,4
20,8
25,0
16,7
22,6
Primary HTG
l/min
18,0
18,0
18,0
18,0
18,0
Secondary DHW*
l/min
25,9
15,0
11,3
21,5
14,5
Power
KW
63,1
36,6
27,5
59,7
40,2

Specifications

Max. DHW flow rate incl. throttle orifice / without throttle orifice
l/min
12/15,2
12/25,9
Heating output
kW
10
15
Max. flow rate primary
l/min
12,7
18,0
Minimum supply pressure primary
kPa
36
44
Pressure loss WOLF heat meter (HM) in the primary circuit (consider pressure loss when using heat meter)
kPa
15
15
Total supply pressure incl. heat meter
kPa
51
59
Pressure loss DHW at 12 l/min / at max. DHW flow rate
kPa
110/50
110/84
Heating pressure level
PN
6
6
Drinking water pressure level
PN
6
6
Secondary circuit pump head
m
6
6
Connection dimension
Female thread
3/4"
3/4"
Max. torque union nut G 3/4"
Nm
35
35
Max. torque union nut G 1"
Nm
40
40
Max. torque union nut plate heat exchanger
Nm
11
11
Version CAT-2-Convert 37
Drinking water temperatures
°C
10/45
10/45
10/50
10/50
Primary HTG
FL-°C
65,0
50,0
65,0
55,0
Primary HTG
RTN-°C
16,8
24,0
16,5
20,3
Primary HTG
l/min
11,1
12,7
11,9
12,7
Secondary DHW*
l/min
15,2
9,3
13,3
12,5
Power
KW
37,0
22,6
37,0
30,4
Version CAT-2-Convert 63
Drinking water temperatures
°C
10/45
10/45
10/45
10/50
10/50
Primary HTG
FL-°C
65,0
50,0
47,0
65,0
55,0
Primary HTG
RTN-°C
14,4
20,8
25,0
16,7
22,6
Primary HTG
l/min
18,0
18,0
18,0
18,0
18,0
Secondary DHW*
l/min
25,9
15,0
11,3
21,5
14,5
Power
KW
63,1
36,6
27,5
59,7
40,2
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