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REV 2 © SAV 08/2017
Domestic Hot Water (DHW) control
Danfoss IHPT Self-Acting controller*
Valve authority = 1
Primed DHW control with 8°C set back
Integral differential pressure control
Pressure Absorber
Heating control
Danfoss AVPL Self-Acting differential pressure control valve (DPCV)*
Grundfos pump EEI rating ≤ 0.20
Operating Dp up to 4.5bar
Safety stat on UFH units
Plate Heat Exchangers
Danfoss Micro PlateTM Heat Exchanger* for improved water flow
35% reduced pressure drop
10% improved efficiency
*Separate datasheet available
Long operating life
Self-Acting mechanical control
Instantaneous shut off of Heat Network supply water through PHEX after tapping
Strainers on Heat Network supply, heating return and cold water pipes
Stainless steel PHEX and pipes
Insulation
Full EPP insulation, including backplate
Fully Insulated First Fix Valve Set* available
H 690 x W 528 x D 235
Compact and easily fit into wall setbacks
High resilience and durability
Commissioning & Maintenance Integral filling loop
Pipe configuration options
Enclosure designed for easy access
Open bypass protection feature available
DHW - IHPT Self-Acting mechanical controller
• Rapid response to
DHW demand
Heating - AVPL Self-Acting mechanical controller
• Self-Acting differential
pressure control valve
• Hydraulic balancing
of Heat Network
LEAN HEAT NETWORKS
MAKING HEAT NETWORKS WORK
700
Flow [l/h]
Time [sec]
600
500
400
300
200
100
00 1
Domestic Hot Water (DHW)Heat Network Supply (HNS)
2 3 4 5 6
IHPT closing time afterDHW tapping
Instantaneous, Self-Acting, Pressure and Temperature controlledHIU with integral bypass control - Indirect, Fully Insulated
Danfoss FlatStation - 7 Series DS (R-FI)
Datasheet
DHW: Capacity examples
FlatStation type
VVX-I-R-FI
DHW capacity
**
[kW]
DHW capacity
[l/min]
Heat Network Supply
[°C]
Heat NetworkReturn
[°C]
CW/ DHW
[°C]
Heat Network flow rate
[l/m]
Heat Network pressure
loss * [kPa]
VVX-I-R-FI 1-x ~4012.5 60 20.0 10/50 12.7 30
15 70 16.5 10/50 11.5 25
VVX-I-R-FI 2-x ~6015 60 18.6 10/50 14.8 30
21 70 15.9 10/50 15.9 30
Danfoss FlatStation - 7 Series DS (R-FI)
Heating: Capacity examples
FlatStation type
VVX-I-R-FI
HTG load
**
[kW]
Heat Network Supply
[°C]
Heat Network Return
[°C]
Heating circuit
[°C]
Heat Network
flow rate [l/m]
Min. diff. pressure
Heat Network*
[kPa]
Flow rate
heating circuit [l/m]
Residual pump
pressure
[kPa]
VVX-I-R-FI x-1 UFH3.5
60 35.3 45/35 2.1 15 5.1 20
VVX-I-R-FI x-2 RAD 70 34.1 60/30 1.4 15 1.7 20
VVX-I-R-FI x-2 UFH7
60 35.4 45/35 4.1 20 10.1 15
VVX-I-R-FI x-2 RAD 70 35.9 60/30 3 25 3.4 20
VVX-I-R-FI x-3 UFH10
60 35.2 45/35 5.9 30 14.5 20
VVX-I-R-FI x-3 RAD 70 35.9 60/30 4.3 30 4.8 20
VVX-I-R-FI x-4 UFH 12.5 60 35.2 45/35 7.4 35 18.1 20
VVX-I-R-FI x-4 RAD 15 70 35.0 60/30 6.3 30 7.2 25
VVX-I-R-FI x-5 RAD 20 70 35.0 60/30 8.4 35 9.6 25
SAV (UK) Limited, Scandia House, Boundary Road, Woking, Surrey GU21 5BX
Phone: 01483 771910 Email: [email protected]
Web: www.sav-systems.com LinkedIn: www.linkedin.com/company/sav-systems REV 2 © SAV 08/2017
34 100 60 60 60 60
65 60
1 2 (3) (4) 5 6
37 4
45
4565
Front view Side view
Circuit diagram - example
DHW
F
E 24
A Plate heat exchanger HE B Plate heat exchanger DHWE Fully Insulated Enclosure for
First Fix Valve Set (optional)F Flushing bypass with
isolation and test points
L Border of deliveryM Electrical wiring box 1 Ball valve2B Double check valve, WRAS
4 Safety valve7 Thermostatic valve
9 Strainer10 Circulation pump HE
DCW
HN Supply
HN Return
14 Sensor pocket, heat meter20 Filling/drain valve24 Delivered loose with unit26 Manometer31 Di�erential pressure controller 38 Expansion vessel39 Connection closed (for DHW recirculation)41B Fi
(optional)tting piece, heat meter 3/4” x 110 mm.
41C Fitting piece, Shut-o� valve (optional)48 Air escape, manual 60 Safety stat for UFH units62B Pressure Absorber w/non-return valve 63 Sieve69 On/o� valve74 IHPT
HE Flow
HE Return
Note: Capacity examples are for guidance only. Please contact us for project specific sizing.Units with larger outputs available.*Heat meter not included **kW output depends on system’s parameters
Technical Parameters
Nominal pressure: PN 10
PN 16 available on enquiry
HN supply temperature: Tmax
= 120 °C
Min DCW static pressure: pmin
= 1 bar
Max differential pressure: Dpmax
= 4.5 bar
Brazing material (PHEX): Copper
Weight incl. enclosure: 28 kg
Including packing
Insulation enclosure: Anthracite grey EPP
Thermal conductivity
0.038-0.040 W/(m2*K)
Electrical supply: 230 V AC
Dimensions (mm): H 690 x W 528 x D 235
With insulation
Connection sizes: G ¾ ” (int. thread)
All connections
Connections:1 Heat Network (HN) Supply
2 Heat Network (HN) Return
3 Standard Heating (HE) Flow
4 Standard Heating (HE) Return
(3)Alternative Heating (HE) Flow
(4)Alternative Heating (HE) Return
5 Domestic Hot Water (DHW)
6 Domestic Cold Water (DCW)
7 Pressure relief valve
Options:- White lacquered steel front cover
- DHW recirculation pump
- DHW recirculation safety valve
- Prepayment valve
- Heat meter
- Fully Insulated Enclosure for
First Fix Valve Set
- 2 Zone heating module
- Room thermostat
- PT40 pre-settable pressure
independent TRV sets
* Distances from edge of metal back-plate, with cover tolerances are ±6mm
Pipe configurations: