Danfoss WP75- RF Montageanleitung
WP75-RF 7 day electronic
programmable hot
water controller
Installation & User Instructions
®
Certification Mark
2
Index
Index
Installation
Product specication 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
3
Product Specication
Product Specication
Please Note:
This product should only be installed by a qualied
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
4
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.
AB
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
5
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 sucient 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
6
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 sucient 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
7
Thermostat Wiring
Wiring
Receiver
NL1234
L N L N
Boiler Pump
2-port zone valve
L
N
Transmitter
A B
WP75-RF RX1 Receiver
RX1 RX2 & RX3
1234
ELECTRONICS
NL
COM ZONE
1 ON
ZONE
1 OFF
A
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.
8
Commissioning
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)
9
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.
10
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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2
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