Danfoss ECtemp Next Plus HW User manual

Installation Guide
ECtemp Next Plus HW
Thermostat for temperature maintenance
© Danfoss | Produced by FEC | 2020.10

ECtemp Next Plus HW
© Danfoss | Produced by FEC | 2020.10 AN347136888492-010101 | 3
EN
DE
CN
PL
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
© Danfoss | Produced by FEC | 2020.10 AN347136888492-010101 | 5
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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
© Danfoss | Produced by FEC | 2020.10 AN347136888492-010101 | 7
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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
S2
S1
N
N(Load )
L(Load )
L
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
© Danfoss | Produced by FEC | 2020.10 AN347136888492-010101 | 9
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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.