Danfoss VMTD-MIX-IE Fact sheet
Fact sheet
Termix VMTD-MIX-IE
Direct heating substation for direct heating with mixing loop and instantaneous domestic hot water with flow compensated temperature controller.
Application
The Termix VMTD MIX - IE is a complete solution with built - in water heater and heating
system with dierential pressure control and
mixing loop. The Termix VMTD MIX - IE is applicable for single - family houses and for decentralized systems in multi - family houses.
District heating (DH)
The substation is prefabricated with adierential pressure controller, tting piece and
sensor pockets for insertion of a heat meter as
well as strainer and ball valves. Furthermore
the substation is delivered with a weather
compensated mixing loop including pump,
controls and non - return valve.
Heating (HE)
The heating circuit is designed for direct connection. The weather compensated mixing
loop creates a suitable temperature level
e.g. for underoor heating and ensures optimum control and monitoring of the heating
system. Regardless of the weather outside,
the heating system is continuously adjusted
according the the selected parameters, thus
preventing overconsumption.
Domestic hot water (DHW)
The domestic hot water is prepared in the
heat exchanger and the temperature is regulated with a thermostatic and ow-compensated controller with integrated dierential
pressure controller. The heat exchanger oers
superb heat extraction of the DH water, thereby creating an excellent operating economy.
The Danfoss IHPT valve insures a stable hot
water temperature by varying loads, supply
temperatures and by high and varying dierential pressure without the need for readjusting the valve. This protec ts the heat exchanger
against overheating and lime scale formation.
Furthermore the IHPT valve has an integrated
idle temperature controller, which keeps the
house supply line warm. This shortens the
waiting periods during summer when the
heating system is in reduced operation, which
is ideal where high comfort is requested.
Options
The substation can be supplied with a builtin non - return valve and safety valve tted in
the cold water supply.
Insulation
The Termix VMTD MIX-IE comes complete
with a fully insulated cover thus minimizing
heat loss both during tapping of domestic
hot water but also when only space heating
is required.
Construction
All pipes are made of stainless steel. The
connections are made by nuts and gaskets.
The Termix VMTD MIX - IE can be delivered
with white - lacquered steel cover in modern design.
FEATURES AND BENEFITS
• Substation for DH and
decentralized systems
• Direct heating with dierential
pressure controller
• DHW thermostatic and ow
compensated temperature controller
• Capacity: 33 – 59 kW for DHW
• DHW in sucient quantity
• Operates independently of dierential
pressure and ow temperature
• Minimum space required
for installation
• Pipes and plate heat exchanger
made of stainless steel
• Minimized risk of lime scale
and bacteria formation
• Complete insulation ensures
minimal heat loss
www.danfoss.com
CIRCUIT DIAGRAM - EXAMPLE
DHW
DCW
DH
Supply
B Heat exchanger DHW
F Electronic controller
1 Ball valve
2 Non-return valve
9 Strainer
10 Circulator pump
14 Sensor pocket, heat meter
16 Outdoor sensor
18 Thermometer
19 Surface sensor
27 Actuator
29 2-way motorized valve
31 Dierential pressure
controller
39 Connection closed
41 Fitting piece, energy meter
63 Sieve
74 IHPT
HE
Supply
DH
Return
Technical parameters:
Nominal pressure: PN 10
DH supply temperature: T
DCW static pressure: P
Brazing material (HEX): Copper
= 110 °C
max
= 1,0 bar
min
Weight incl. cover: 25 kg
Cover: White-lacquered
steel sheet
Insulation: EPP λ 0.039
Insulation cover: Anthracite grey EPP
Dimensions (mm):
Without cover: H 800 × W 530 × D 375
With cover: H 800 × W 540 × D 430
DHW: CAPACITY EXAMPLES
Substation type
VMTD MIX - IE-1
VMTD MIX - I E- 2
DHW capacity
[ kW ]
32,3 60 19,8 10 / 45 23 13,3
40,3 60 20,7 10 / 45 33 16,6
36,5 70 19,1 10 / 50 20 13,2
55 70 21,5 10 / 50 39 19,8
32,3 55 21,9 10 / 45 26 13,3
38 55 22,2 10 / 45 34 15,7
32,3 60 19,6 10 / 45 20 13,3
47 60 19,6 10 / 45 34 19,4
39,5 70 19,0 10 / 50 20 14,3
59 70 19,2 10 / 50 34 21,3
Supply flow
primary
[ °C ]
Connections:
1. District heating (DH) supply
2. District heating (DH) return
3. Heating (HE) supply
4. Heating (HE) return
5. Domestic hot water (DHW)
6. Domestic cold water (DCW)
Return flow
primary
[ °C ]
DHW
[ °C ]
wall
HE
Return
Connections sizes:
DH + HE: G ¾“ (int. thread)
DCW + DHW: G ¾“ (int. thread)
Options:
• White - lacquered steel cover
• Safety valve and non - return valve (10
bar)
• Pressure equalizer GTU
Pressure loss
primary
[ kPa ]
DHW tap load
[ l / min]
Gemina Termix A/S · Member of the Danfoss Group · Navervej 15-17 · DK-7451 Sunds · Denmark
Tel.: +45 9714 1444 · Fax: +45 9714 1159 · mail@termix.dk · www.heating.danfoss.com
© Danfoss | DHS-SRMT/ PL | 2016 . 09
VL.JV.Z2.02
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