Danfoss ECtemp Next Plus HW User manual

Installation Guide

ECtemp Next Plus HW

Thermostat for temperature maintenance

ECtemp Next Plus HW

Contents

1. Installation Guide .....................................4

ECtemp Next Plus HW

Thermostat for temperature maintenance

2. Installationsanleitung ............................... 16

ECtemp Next Plus HW

Thermostat für Temperaturerhaltung

3. 安装指南............................................ 28

ECtemp Next Plus HW

温度保持用温控器

4. Instrukcja montażu .................................. 40

ECtemp Next Plus HW

Termostat do podtrzymania temperatury

ECtemp Next Plus HW

4 | © Danfoss | Produced by FEC | 2020.10 AN347136888492-010101

1 Introduction

ECtemp Next Plus HW is an electronic programmable timer

thermostat used for controlling domestic hot water temperature.

The thermostat is designed for ﬁxed installation only and can be

used for both temperature maintenance and legionella mitigation

(above 55 °C), using timer and external sensor features.

• Correct wiring is essential. Use instrument to conﬁrm L

and N before wiring is recommended.

• Don’t remove too much of the insulation cover from

the wire to avoid short circuit, caused by the naked wire

touching the metal 86 mm. sized mounting wall box.

• Don’t let the screw press or touch the wire when using

screw to ﬁx room thermostat in wall box. A short-circuit

risk exists if the wire insulation cover is damaged by the

screw, and if the naked wire connects with the screw.

• If walls must be painted, mount the room thermostat

after painting, to avoid dust or paint material penetrating

the room thermostat and thus damaging the PCB.

• The max load of relay is <16 A (resistive) or <6 A (inductive).

The relay will be damaged if the load exceeds the limit.

• Don’t cover the thermostat, for instance by

hanging towels directly in front of it.

ECtemp Next Plus HW

2 Technical Speciﬁcations

Feature Description

Approval CE Marking, EN60730

Ambient temperature 0 to 45 °C

IP Class 30

Max. load, inductive <6 A

Max. load, resistive <16 A

Floor sensor NTC 15 kOhm at 25 °C

Power consumption <2 W

Power supply 85-250 V AC, 50/60 Hz

Size 86 x 86 x 13 mm, WxHxD,

in-wall 24,5 mm

External temp. sensor range 35 to 65 °C

Housing ABS + PVC

Hysteresis ±1 °C

Cable speciﬁcation max. 1x4 mm²

Frost protection temperature (in °C) 5 °C

Ball pressure test temperature (in °C)

75 °C

Pollution degree 2

Controller type 1C

Software class A

ECtemp Next Plus HW

6 | © Danfoss | Produced by FEC | 2020.10 AN347136888492-010101

Feature Description

Storage temperature (in °C) -10 to +60 °C

Protection class Class II

Weight 143 g

Electrical safety and Electro-Magnetic Compatibility for this

product is covered by the compliance with the EN/IEC Standard

“Automatic electrical controls for household and similar use”:

• EN/IEC 60730-1 (general)

• EN/IEC 60730-2-9 (thermostat)

ECtemp Next Plus HW

3 Wiring

• Dimensions, see fig. 4

• Wiring diagram, see fig. 5 (S1, S2: ﬂoor sensor terminals).

• Complete the wiring, see fig 5.

86.0

86.0 50.0

50.0

24.513.0

Fig. 4

85-250 Vac, 50/60 Hz

L N

N(Load )

L(Load )

Max. Load

16 A

Fig. 5

ECtemp Next Plus HW

8 | © Danfoss | Produced by FEC | 2020.10 AN347136888492-010101

4 Installation Steps

User Guide can be downloaded from: heating.danfoss.com.

• Installation must be done by an authorised electrician.

• The room thermostat should be installed at approx. 1,5 m

above ﬂoor and where the eﬀects of sunlight, draught or

other heat sources (eg.TV’s) are avoided, see fig. 1.

• First of all, carefully remove the cover, see fig. 2.

• Connect the wire before mounting the back plate to the

wall box using the enclosed screws. Then mount the

cover to the back plate, see fig 3.

1.5 m

Fig. 1 Fig. 2

Fig. 3

ECtemp Next Plus HW

5 Basic features

• Floor temperature setting and measurement.

• Auto recovery, Defrost (low temperature protection).

• Clock, Timer and 6 period programming.

• Working mode selection.

• Keypads Lock.

6 Status display

• Thermostat output display.

• Floor temperature display.

• Floor temperature setting display.

• Clock display.

• Low temperature protection display.

• Working mode selection display.

7 Operation

• On/Oﬀ thermostat: Press“ ”to turn on, press “ ”

again to turn oﬀ thermostat and its output.

• Setting temperature: press“ ”to reduce temperature,

press“ ”to raise temperature (0.5 °C changed each press).

• Working Mode Selection: When thermostat turns on,

press“ ” to select diﬀerent working mode, icon

means thermostat at Timer mode, icon“ “ means at

Programming mode, without these two icons means at

manual mode.

ECtemp Next Plus HW

10 | © Danfoss | Produced by FEC | 2020.10 AN347136888492-010101

• Heating Equipment Control:The thermostat will switch

on the heating equipment when the water temperature

2 degree lower than the setting temperature, the LCD will

display“ ”; When the water temperature is equal with

setting temperature, the thermostat will switch oﬀ the

heating equipment. The icon“ ”will disappear.

8 Clock setting

• Clock setting: Press“ ” till to display“hh:mm”and “hh”

ﬂash, press“ ” or“ ” to adjust hour, press “ ”,“mm”

ﬂash, press“ ” or“ ” to adjust minute; Press“ ”,

“week” ﬂash, press“ ”or“ ”to adjust Mon to Sun.

9 Timer programming

• Weekdays Setting: When thermostat at Programming mode,

setting in the ﬁrst period: press and hold for 5 seconds“ ”

till to display“Mo Tu We Th Fr”and“hh:mm”and “hh”ﬂash,

press“ ” or“ ” to adjust hour in the ﬁrst period; press

“ ” till to display“hh:mm”and “mm”ﬂash, press“ ” or

“ ” to adjust minutes in the ﬁrst period; press“ ”, the

temperature ﬂash and the ﬁgure is the setting temperature

of ﬁrst period. When setting temperature is lower than

35 °C, it will display“OFF”. Using the above method to set

the hour and minute in other periods. Once the setting

time is over 16:00 at each period, it will switch to

weekend setting.

• Weekend Setting:“Sa Su”showing is weekend setting, the

setting method is same with above.

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