Danfoss ThermoDual Fact sheet

Fact sheet

ThermoDual®

Domestic hot water charging system for hospitals, hotels, restaurants, sport centres as well as industrial buildings and dwelling houses

Application

ThermoDual® is a compact and ef­fective domestic hot water (DHW)
charging system. It optimally com­bines the system of storage water
heater and instantaneous water
heating system. The ThermoDual®
system is suitable for hospitals, ho­tels, restaurants, sport centres as well
as industrial buildings and dwelling
houses, where the constant DHW tem­perature even during peak consump­tion periods is needed. ThermoDual®
can be supplied from local and district
heating systems, low-temperature or
condensing boilers, boiler systems as
well as solar, process and waste heat
systems. The system is available in two
dierent types with integrated DHW
storage tank and integrated brazed
(–S) or gasketed (–GS) plate heat ex­changer.

Domestic hot water (DHW)

The ThermoDual® system can be deliv­ered with self-acting or electronic con­troller for controlling of the charging

temperature and the temperature
in DHW storage tank. It ensures the
constant DHW ow and temperature
even during peak consumption peri­ods. The system operates in three op­eration modes: a load low operation,
a peak load operation and a charging
operation (no consumption).

Domestic hot water circulation

ThermoDual® is supplied with con­nection for DHW circulation. The
connection pipe of DHW circulation
is placed directly on the storage tank
or in the cold water side (between
storage tank and heat exchanger).

Options

The system can be combined with
a second or multiple DHW storage
tanks for optimum tailoring to on-site
conditions.

Construction

The DHW storage tank and plate
heat exchanger are made of stainless
steel. The ThermoDual® system is de-

FEATURES AND BENEFITS

• DHW charging system

• Electronic or self - acting control
of DHW temperature

• Performance index NL: 3 - 87 / 23 - 871

• Connected load: 22 - 150 / 60 - 150 kW

• Constant DHW temperature

• Compact design

• Easy installation

1

ThermoDual®– S / – GS

1

livered as a set of DHW storage tank
and charging unit with all required
connection parts. The charging unit
can be easily assembled with DHW
storage tank through attached pre­mounted tting set.

heating.danfoss.com

SCHALTSCHEMA (BEISPIEL)

HEL

4

5

CVS/CVE

TC

SFV

3

LPU

Technical parameters:

Type – S
Nominal pressure: PN 25
DH supply temp.: T

max

Type – GS
Nominal pressure: PN 3
DH supply temp.: T

max

37

= 150 °C

= 110 °C

3

DTA

1

shut off device

2

balancing valve

sensor (direct, cable / universal, surface)

TC

thermometer

drain / air vent (on site / by customer)

3

DTA Domestic buer tank
HEL HEX charging / load
LPU Charging pump / load
SFV Safety valve
CVE Control valve electrical (accessory)
CVS Control valve self-acting (accessory)

Connections:

1 Domestic water cold
2 Domestic water hot
3 Circulation (options)
4 Heating supply
5 Heating return
37 Domestic water load

Options:

• Stainless steel DHW storage tank,
series SE, capacity 100 ... 8000 liters

• DHW-adequate bronze or stainless
steel charging pump

• Balancing valve

• Stainless steel sensor pockets

• Self-acting control valves as 2-way
valve, 3-way mixing valve, or 3-way
diverting valve, with thread or ange

• Control and safety thermostats,
storage tank thermometer

• Additional storage tank

DHW: CAPACITY EXAMPLES

DHW tem-

Type

peratures
prim./sec.

[°C]

200-010
500-060 72 150 1294 4373 1765 1050 950 103

-S

70->25/10->60

Performance

index

NL

8 25 368 902

Con-

nected

load

2

[kW]

1000-060 87 150 1973 5051 2080 1150 1250 169 2”

300-030

-GS

65->35/10->60

500-020 30 60 925 2157 1765 1450 1100 173

35 100 817 2864 1705 1375 975 150

DHW top delivery

[l/10 min] [l/h]

Input

3

W

max. 87

1000-050 87 150 1973 5051 2080 1570 1200 244 2”

2) Performance index NL acc. to DIN 4708 in relation to a storage tank water temperature of 60 °C.

3) Charging pump; A.C. 1 ~ 230 V / 50 Hz; thermal motor overload protection or motor protection by integrated thermo switch.

© Danfoss | DHS-SRMT/ PL | 2016 . 05

Dimensions

H

weight

[mm]W[mm]D[mm]

1540 800 700 68

Net

[kg]

Connections

1, 2 3 4, 5

1½”

1½”

¾”

¾”

1”

1”

DN 20 / 25

G 1¼”

VL.KR.G4.02