Danfoss WP75- RF Instructions de montage

WP75-RF 7 day electronic

programmable hot

water controller

Installation & User Instructions

Certification Mark

Index

Installation

Product specication 3

Thermostat (WP75-RF) installation 4-5

Sensor (CS1) installation 5-7

Wiring 7

Commissioning 8

User

What is a Cylinder Thermostat? 9

Your programmer 10

How to read the display 10

Preset programmes 11

Resetting the unit 11

Setting the Time and Day 12

Running your programme 12

Before changing the preset programmes 13

Programming the unit (7-day mode) 14

Programming the unit (5/2-day mode) 15

Running your programme 16

BOOST function 17

Hot Water Available function 17-18

Changing clocks forward/back 18

Battery backup 19

Contact details 20

Product Specication

Please Note:

This product should only be installed by a qualied

electrician or competent heating installer and

should be in accordance with the current edition of

the IEEE wiring regulations.

Important note RF products: Ensure that there are no large metal objects, such as boiler cases

or other large appliances, in line of sight between the transmitter and receiver as these will

prevent communication between thermostat and receiver.

Thermostat features WP75-RF

Power supply 2 x AA/MN1500/LR alkaline cells

Memory back-up 1 min for battery change

Transmission frequency (RF model) 433.92MHz

Transmitter range (RF model) 30m max

Max. ambient temperature 45°C

Temperature range 35 - 65°C

Dimensions, mm (W x H x D) Unit - 110 x 88 x 28

Remote Sensor - 48 x 48 x 45

Design standard EN60730-2-9 (EN300220 for RF)

Ball hardness test 75°C

Control pollution situation Degree 2

Time accuracy ± 1 min

Temperature accuracy ± 1°C

Installation Instructions

Thermostat Installation

Installation

WP75-RF installation

 Select a position for the WP75-RF that provides easy access to

the unit (it could be used on a daily basis by the user, so the

display needs to be clearly visible) and bearing in mind that

the maximum distance between the thermostat and sensor is

10 metres.

 Prepare the xing position to provide access for the sensor

cable through the rear of the wallplate.

 If the cable is to be surface xed note that it can only enter

the WP75-RF from the bottom through the positions shown

below.

 Fix the wallplate so that the control module can be easily

attached or removed. Make the sensor wiring connections as

shown in the wiring diagram on page 7.

 Before attaching the control module to the wallplate set the

DIL switch, located in a recess on the rear of the module, to

select whether the WP75-RF will be a 7 day controller or a 5/2

day (weekday/weekend) controller. Move both switches to

the desired position.

30mm min

Wall or plaster

box mounting

holes

Aperture for

rear entry

Clearance for

screwdriver access Knockout for bottom

cable entry

Terminals

Outline of entry

 Attach the control module to the wallplate by placing the

slots in the top of the module over the lugs on the top edge

of the wallplate and hinging down until the slot in the bottom

edge of the module locates over the screw attached to the

wallplate. Tighten the screw.

CS1 Sensor installation

Gas or Oil red Boiler Systems

 The sensor should be tted to the side of the domestic hot

water cylinder, half way up from the bottom.

 Select the xing position and remove sucient insulation to

ensure that the sensor element can make close contact with

the surface of the cylinder wall.

 Clean away all traces of insulation and ensure both cylinder

wall and sensor are clean.

 Before mounting the sensor, coat the copper foil on the contact

surface of the sensor with the heat conducting paste supplied.

The sensor must be connected to the WP75-RF using double

insulated cable greater than 0.75mm2.

For insulation thicker than 25mm

and up to 55mm thick, use the

extra cover supplied as a spacer to

ensure that the sensor is held in

firm contact with the cylinder wall.

1/2 cylinder

height

Sensor Installation

IMPORTANT

1. Ensure cylinder wall is clean

2. Use heat transfer paste

provided

 Connect the cable to the sensor terminals and replace the

cover. Place the sensor on the cylinder and clamp tightly to

the cylinder using the strap provided.

 Cable entry is from behind if tted to a single gang ush box,

or from above, below or from the left if surface xed cable is

used.

Fast Recovery Cylinder Heater Systems

 The sensor should be tted to the side of the domestic hot

water cylinder just below the top seam.

 Select the xing position and remove sucient insulation to

ensure that the sensor element can make close contact with the

surface of the cylinder wall (see opposite).

 Clean away all traces of insulation and ensure both cylinder

wall and sensor are clean.

 Before mounting the sensor, coat the copper foil on the

contact surface of the sensor with the heat conducting paste

supplied.

Sensor Installation

For insulation thicker than 25mm

and up to 55mm thick, use the

extra cover supplied as a spacer

to ensure that the sensor is held

in firm contact with the cylinder wall.

IMPORTANT

1. Ensure cylinder wall is clean

2. Use heat transfer paste

provided

Thermostat Wiring

Wiring

Receiver

NL1234

L N L N

Boiler Pump

2-port zone valve

Transmitter

A B

WP75-RF RX1 Receiver

RX1 RX2 & RX3

1234

ELECTRONICS

COM ZONE

1 ON

ZONE

1 OFF

ELECTRONICS

BC123456

NLZONE

1 ON

ZONE

1 OFF

ZONE

2 ON

ZONE

3 ON

COM

TERMINAL 6

RX3 ONLY

RX Receiver Wiring

Note 1) For mains voltage operated systems link terminal 2 to mains live supply.

2) Power supply to unit must not be switched by timeswitch

 The sensor must be connected to the WP75-RF using double

insulated cable greater than 0.75mm2.

 Connect the cable to the sensor terminals and replace the

cover. Place the sensor on the cylinder and clamp tightly to

the cylinder using the strap provided.

Commissioning

If the thermostat and the receiver have been supplied together

in a combined pack, the units have been paired in the factory

and no commissioning is required (RX1 only).

To tune the RX receiver to the frequency of the thermostat signal,

follow steps 1-5 below.

1. WP75-RF

Press the recessed RESET button, using

a non-metallic object, to reset the unit.

2. Press & hold the recessed LEARN

button for 3 seconds, using a non-

metallic object.

NOTE: Thermostat now transmits

continuously for 5 minutes.

3. RX1

Press and hold buttons PROG and CH1

for 3 seconds until green light ashes

once.

4. RX2 (if applicable)

Stat 1 - perform steps 1-3

Stat 2 - wait 5 mins, perform steps 1-2,

then press PROG + CH2 on RX2

RX3 (if applicable)

Stat 1 - repeat step 2-3 for CH1

Stat 2 - wait 5 mins, perform steps 1-2, then press PROG + CH2

on RX3

Stat 3 - wait 5 mins, perform steps 1-2, then press PROG + CH3

on RX3

5. WP75-RF

Press or  - the unit will revert to

normal operation.

(1)

(2)

What is a cylinder thermostat?

... an explanation for householders.

A cylinder thermostat switches on and o the heat supply from the

boiler to the hot-water cylinder. It works by sensing the temperature

of the water inside the cylinder, switching on the water heating

when the temperature falls below the thermostat setting, and

switching it o once this set temperature has been reached.

Turning a cylinder thermostat to a higher setting will not make the

water heat up any faster. How quickly the water heats up depends

on the design of the heating system, for example, the size of boiler

and the heat exchanger inside the cylinder.

The water heating will not work if a time switch or programmer has

switched it o. And the cylinder thermostat will not always switch the

boiler o, because the boiler sometimes needs to heat the radiators.

Cylinder thermostats are usually tted between one quarter and

one third of the way up the cylinder. The cylinder thermostat will

have a temperature scale marked on it, and it should be set at

between 60°C and 65°C, then left to do its job. This temperature is

high enough to kill o harmful bacteria in the water, but raising the

temperature of the stored hot water any higher will result in wasted

energy and increase the risk of scalding.

If you have a boiler control thermostat, it should always be set

to a higher temperature than that of the cylinder thermostat. In

most boilers, a single boiler thermostat controls the temperature

of water sent to both the cylinder and radiators, although in some

there are two separate boiler thermostats.

The text below has been edited and approved by the Plain English

Campaign, who has issued a Crystal Mark to be displayed with it.

What is a cylinder thermostat?

Please note: The WP75-RF is a programmable cylinder thermostat.

Your programmer

The WP75-RF is a wireless programmable thermostat, designed to

control the temperature of the water in your hot water cylinder.

Heating water to a temperature which is higher than necessary

is wasteful of energy. The WP75-RF lets you heat your water to a

temperature you require, just at the times you need it. You can

programme up to three ON times and temperatures per day.

It also features a BOOST function, to provide an instant tank of hot

water, as well as a Hot Water Available function, which tells you

how much hot water you have available in your cylinder.

How to read the display

Overview & reading the display

User Instructions

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