Heat Interface Unit /
KFS 721S INDIRECT DOMESTIC HOT WATER & DIRECT SPACE HEATING HEAT INTERFACE UNIT
Indirect Domestic Hot Water & Direct Space Heating Heat Interface Unit
KODFLAT721S series Heat Interface Units are the most compact solution, operating with district heating system that require medium static pressures and temperatures.
The district heating and space heating circuits are controlledly connected to each other; while DHW secondary circuits are completely separate; no mixing and contamination are allowed.
KODFLAT721S is useful when designing or redesigning the heating and domestic hot water systems of apartment buildings under renovation, as well as facilitating any maintenance required in the individual dwellings.
Features
Heating System
Two pipe flow
Mounting
Wall Mounted
Dimensions
355 x 420 x 165 (mm)
Casing
Painted metal sheet
Plate Heat Exchanger
Stainless steel, copper brazed
Pipework
Stainless steel pipe with brass fittings
Insulation
EPP, ERF
All External Connections
¾" coupling
Technical Data
| Primary Circuit | |
| Nominal Heat Capacity (*) | Domestic Hot Water: 7,3-72,9 kW |
| Underfloor Heating: 15 kW | |
| Radiator Heating: 26 kW | |
| Minimum- Maximum Hot Water Flow Rate | : 96-1086 l/h |
| Minimum- Maximum Flow Temperature | : 50- 90 °C |
| Nominal Pressure | : PN 10 |
| Min. Required Differential Pressure | : 35 kPa (**) |
| Secondary Circuit | |
| Maximum Flow Rate | : 1800 l/h |
| DHW Circuit Temperature | : 10/60 °C |
| Space Heating Circuit Temperature | : 50/70 °C |
| Nominal Pressure | : PN 10 |
(*) kW output and DHW flow rate data are correlated with the system parameters.
(**) Heat meter and inter-floor differential pressure regulating valve pressure losses not included.
KODSAN reserves the right to change the product specifications, technical information and installation diagrams without any notifications.
All information written on this page can not be copied or used without permission of KODSAN. Kodsan can not be held responsible if any of the technical information and schemes are considered exemplary by third parties.