Danfoss RET M Operating instructions

RET M Electronic mains powered dial
setting thermostat with LCD display
User & Installation Instructions
®
Certification Mark

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Installation Instructions 3-9
User Instructions 10-14
Instructions d’installation 15-21
Instructions d’utilisateur 22-24
Anweisungen für Installati 25-31
Benutzeranweisen 32-34
Instrucciones de instalación 35-41
Instrucciones del usuario 42-44
Instruktions vejledning 45-51
Brugervejleding 52-54
Installatie handleiding 55-61
Instructiesevoor Gebruik 62-64
Ïäçãßåò åãêáôÜóôáóçò 65-71
Ïäçãßåò ÷ñÞóçò 72-74
Instrukcja instalacji 75-81
Instrukcja Użytkownika 82-84
Montavimo instrukcijos 85-91
Informacija Vartotojui 92-94
Istruzioni per l’uso 95-100
Istruzioni per l’utente 101-103
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Installation Instructions
Features RET M,RET M-LS,RET M-NSB
Temperature Range 5 - 30°C
Setting knob and LCD display l
Chrono-proportional or On/Off control l
Heat or cool operation
incl compressor delay timer l(1)
Selectable °F or °C scaling l
Output relay contact rating 10-264 Vac, 50/60 Hz, 3 (1) A
Switching action 1 SPDT
Power supply 230 Vac ± 15%,50/60 Hz
Maximum ambient temp 45°C
Ball Hardness 75°C
Rated Impulse Voltage 2.5kV
Ball Pressure Test 75°C
Dimensions (mm) 85 wide x 86 high x 42 deep
(1) Compressor delay only available if thermostat is set to cool operation.
Installation Instructions
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Mounting
Fix at a height of 1.5m
approx from the floor,
away from draughts
or heat sources such
as radiators, open fires
or direct sunlight.
Please Note:
This product should only be installed by a qualified electrician or
competent heating installer and should be in accordance with the
current edition of the IEEE wiring regulations.
Installation Instructions
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Wiring
Installation Instructions
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DIL switch settings
Slide the DIL switches to the settings required.
ON/OFF - boiler switches ON when below set temperature and
OFF when above.
CHRONO - energy saving feature which fires the boiler at
regular intervals to maintain a set temperature, achieving a
constant ambient environment for the user.
o use 6 Cycles for radiator systems.
o use 3 Cycles for underfloor heating.
Installation Instructions
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Heating selection
Cooling selection
COOL
ON/OFF
6 CYCLES
°F
COOL
NO DELAY
4 MIN DELAY
°F
HEAT
CHRONO
3 CYCLES
°C
HEAT
2 MIN DELAY
°C
COMPRESSOR DELAY
Installation Instructions
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Mounting (continued)
Resetting the unit
When power is first applied,
remove the dial and press the
RESET button for 2 seconds.
RESET
button
Installation Instructions
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Locking & Limiting
Locking - setting the thermostat at a temperature which
cannot be altered by the user.
Limiting - allowing the user to alter the temperature within
a predefined range, which is less than the full range of the
product (i.e. between 18-22°).
Installation Instructions
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10
What is a room thermostat?
...an explanation for householders
A room thermostat simply switches the heating system on and off
as necessary. It works by sensing the air temperature, switching on
the heating when the air temperature falls below the thermostat
setting, and switching it off once this set temperature has been
reached.
Turning a room thermostat to a higher setting will not make the
room heat up any faster. How quickly the room heats up depends
on the design of the heating system, for example, the size of boiler
and radiators.
Neither does the setting affect how quickly the room cools down.
Turning a room thermostat to a lower setting will result in the room
User Instructions
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