Danfoss Distribution Systems Fact sheet
Fact sheet
Distribution Systems
Prefabricated solutions for floor heating. Plug & Play construction, which required minimum space and minimum time for installation.
GTZC
GC
G
Application
The Danfoss distribution systems are prefabricated solutions for floor heating, which
can be installed separately or be implemented with the Danfoss flat station range,
in connection with a boiler or as an extension of an existing heating system.
These solutions make it easier for the installer to order a ready-made plug & play construction for mounting of distribution pipes
for the building section.
The systems are available as standard solutions with 3 to 14 connections. In addition
the solutions include a flow meter to maintain the designated flow rate.
Solution GTZC also includes a shunt with a
circulation pump as well as a Danfoss FTC
self-acting thermostat for control of the
supply temperature as well as. The solutions
GC and GTZC are fitted with a hard-wired
master controller for control of the floor
heating system.
For solution GTZC an electric safety thermostat, in combination with a zone valve with
actuator, ensures maximum temperature
limitation in the floor heating circuit, and
protects the floor heating circuit from overheating.
The built-in zone valve, in combination with the thermal actuator and a
room thermostat (not part of the delivery), enables a comfortable and energy-
efficient control of heating times.
The distribution systems are available as
built-in variants with a recess box as an option, or as surface mounted variants with a
white cover as an option.
Recess boxes for built-in variants are available in two variants, - in width 610 mm for
built-in variants with up to 7 connections, in
width 850 mm for built-in variants with up
to 12 connections and in width 1000 mm for
built-in variants with up to 14 connections.
Description
Type G: Distribution system for floor heating
without shunt, with flow meter. This variant
is available with 3 to 14 connections.
Type GC: Distribution system for floor heating without shunt, with flow meter and
with hard-wired Master controller FH-WC as
standard. This variant is available with 3 to 14 connections.
Type GTZC: Distribution system for floor
heating with integrated shunt with circulation pump, with flow meter, zone valve and
FTC thermostat for control of supply temperature. With hard-wired Master controller
FH-WC as standard. This variant is available
with 3 to 14 connections.
Flexible solutions
The Danfoss distribution systems are prepared for implementation with the Danfoss
flat station ranges EvoFlat MSS, EvoFlat FSS,
Akva Lux II S-F and Akva Lux II TDP-F.
For more information about implementation with the Danfoss flat station range
please refer to the relevant product sheets
for the respective flat stations.
FEATURES AND BENEFITS
• Minimum space required for installation
• Minimum time required for installation
• Plug & Play construction
• Exact setting of the flow rate per circuit
by means of presettable valve RA-C
• Flexible - prepared for implementation
with the Danfoss flat station range
www.danfoss.com
SECTION
C-C
D
C
B
A
87
6
5
4
3
2
E
D
C
B
A
87
6
5
4
3
CIRCUIT DIAGRAM EXAMPLE
G
HE
Supply
HE
Return
GTZC
HE
Supply
HE
Return
Technical parameters:
Nominal pressure: PN 10
DH supply temperature: T
max
= 90°C
Weight: 20-30 kg
(incl. packing)
Electrical supply: 230 V AC
GC
Dimensions (mm):
H 600 x W
1000 x D 150
(max.)
W 600 = Max. 7 connections
W 850 = Max. 12 connections
W 1000 = Max. 14 connections
Connections sizes:
Flat station: G ¾” (IT)
HE: G ¾”
6 Non-return valve
10 Circulation pump Wilo Yonos 15/6-130 230V
19 Tapping point with manual air valve
25 Electrical junction box
33 Thermostat Danfoss RA-C/FTC 15-50°C
43 Connection for radiator
52 Zone valve VMT/TWA-V
57 Safety thermostat
58 Manifold w. 7 connecting pieces
90 Wireless Hydronic controller
90A Thermo -actuator Danfoss TWA-A 24 V
Options:
• Pipe set for high temperature connection
• Room thermostat
• Recess box (for built-in variant)
Recess box for built-in variant
Flat station with distribution system -
recess mounted variant
665
610
1300
1382,5
85
128
31 110 50 65 65 65 65
165
150
Min.1355
45
90
130
634,5
147,5 145
Flat station with distribution system -
surface mounted variant
350
75 130
24
65 65 65 65
180
555
44
89
129
697
1301
604
78 145
160
© Danfoss | DHS-SRMT/ PL | 2018 . 02
VL.IE.R3.02
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