Download Application Guide - living eco & connect PDF

TitleApplication Guide - living eco & connect
LanguageEnglish
File Size2.8 MB
Total Pages16
Document Text Contents
Page 1

www.heating.danfoss.com

Application Guide

Heating Control
Danfoss Link™ & Connect Thermostats

Page 2

Application Guide Heating Control with Danfoss Link™ & Connect Thermostats

2 VAIDD402 © Danfoss 07/2016

Table of Contents

1. Introduction

1.1 Segment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Danfoss Eco® programmable radiator thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Overview of units in a Danfoss Link™ system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 Number of units in a Danfoss Link™ system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.5 Best Practice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. General Guidelines

2.1 Heat supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3. Applications

3.1 Heating system with Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Heating system with Central Boiler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3 District Heating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.4 Heat Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Page 8

Application Guide Heating Control with Danfoss Link™ & Connect Thermostats

8 VAIDD402 © Danfoss 07/2016

2.3 Rooms

The adaptive learning function (Forecast) ensures that the comfort temperature is reached at set
time. The warm up time is continuously adjusted according to seasonal temperature changes.
• Adaptive learning ensures the wanted temperature at the wanted time (here 20 °C at 07:00).
• Adaptive learning uses data from the previous 7 days to be able to reach the correct temperature

at the right time.
• Adaptive learning is sensitive to large, rapid temperature changes.

66

12

39

6

12

39

6

Winter: Long warm up time. Spring/fall: Short warm up time.

Covering the radiator - e.g. with furniture, curtains or a radiator cover - might cause heat to be
accumulated around the thermostat.

Light curtain/furniture:
• Connect Thermostat: can

be used, but function is
improved by using a RS
room sensor.

• Danfoss Eco™: can be used,
but it might be necessary to
raise the set temperature.

Medium curtain/furniture:
• Connect Thermostat: use

with Danfoss Link™ RS room
sensor.

• Danfoss Eco™: can be used,
but it might be necessary to
raise the set temperature.

Radiator cover:
• Connect Thermostat: use

with Danfoss Link™ RS room
sensor.

• Danfoss Eco™: not recom-
mended in this situation.

If two radiators are placed within 40 cm of each other, the heat
emission from one radiator can affect the thermostat on the
other radiator.
• Connect Thermostat: use with Danfoss Link™ RS room

sensor.
• Danfoss Eco™: balance the two radiators by adjusting the set

temperature on the affected radiator.

Page 9

Application Guide Heating Control with Danfoss Link™ & Connect Thermostats

9VAIDD402 © Danfoss 07/2016

Direct heat radiation from large radiators may
disturb the Connect Thermostats ability to
measure the room temperature correctly.

To avoid this, mount the thermostat pointing
away from the radiator.
The optimal solution is a Connect Thermostat
with a Danfoss Link™ RS room sensor.

Danfoss do not recommend to use an angle adapter, instead the valve should be turned or replaced.

A fireplace in the room can affect the adaptive learning
function of the Connecct Thermostat and disturb the heating
control.
If you use your fireplace regularly it is recommended to
deactivate the adaptive learning.
By deactivating the adaptive learning function, Connect will
work as a traditional thermostat, but with a delay in heating up
the room after the fire has burned out.

Note: If the valve has been closed for a longer period there may be
a delay in heating up the room.

Sunlight from large windows in the room can affect the
adaptive learning function of the Connect Thermostat and
disturb the heating control. Then it is recommended to
deactivate the adaptive learning.
By deactivating the adaptive learning function, Connect will
work as a traditional thermostat, but with a delay in heating up
the room after the heating from the sunlight has stopped.

Continuous draft from a leaky window or garden door directly
on the Connect Thermostat will disturb the heating control.
• Connect Thermostat: use with Danfoss Link™ RS room

sensor.
• Danfoss Eco™ : We do not recommend using Danfoss Eco™ in

installations where temperature measurement at the
thermostat is not representative of the room temperature.
In an installation with frequent draft, the regulation may
become instable and lead to fluctuating temperature and
reduced battery life.

Page 15

Application Guide Heating Control with Danfoss Link™ & Connect Thermostats

15VAIDD402 © Danfoss 07/2016

3.4 Heat Pump Description

A heat pump is generating heating by transfer-
ring heat from a relatively low-temperature
reservoir, such as air or ground, to one at a
higher temperature.

Min. requirements
� min. 40 °C supply temperature at the valve.
� sufficient heating capacity to increase the
room temperature with 1 °C per hour.

� only radiator valves approved for Danfoss
adapters.

Recommendations

Weather compensation
If the heat pump’s heating curve is set to have
the radiator thermostats on comfort tempera-
ture constantly, the curve must be increased in
order to be able to raise the room temperature
after a setback period.

• If the setback periods are long, further
increase might be necessary.

• If the economy periods are short, less increase
can be sufficient.

Outdoor Air Temperature (˚C)

Su
p

p
ly

W
at

er
T

em
p

er
at

u
re


C

)

20 15 10 5 0 -5 -10

80

70

60

50

40

30

20

If system is installed during period with outside temperature > 10° C opening point will not be
found untill temperature drops below 7-8° C. Can be solved by manually setting the heating curve
higher during the run in period (approx. 1 week).

Page 16

Application Guide Heating Control with Danfoss Link™ & Connect Thermostats

16 VAIDD402 © Danfoss 07/2016

Similer Documents