Heatmiser PRT-EW User manual

Operating Instructions
Model: PRT-EW
Compatible with RC2-W
Revision 1 11/09

Contents Page
Install Procedure
2-3
Pairing the Thermostat
4-5
Icons Explained
6
Temperature Display
6
Setting the Clock
7
Locking the Thermostat
7
Comfort levels Explained
8-9
Setting the Temperature
11
Holiday Feature
12
Factory Reset
13
Optional Features Explained
14-18
Optional Feature Setup
19-20
1

Installation Procedure
Mount the thermostat at eye level.
Installation
Carefully separate the front half of the
thermostat from the back plate by placing a
small flat head terminal driver in to the slots
on the bottom face of the thermostat.
Fix the back plate to the wall. Clip the front of
the thermostat to the back plate.
2

Installing the Batteries
2 AAA batteries are supplied with the thermostat.
To access the battery holder, push and
release the compartment door (located on
the bottom face of the thermostat)
Install the batteries in the holder, following the polarity of the
batteries. Then push the holder back inside the thermostat.
You should replace the batteries in the thermostat when the
battery icon is displayed on the LCD. Ensure you replace the
batteries within 1 minute in order to regain the current clock
setting.
3

Pairing the Thermostat
With the thermostat turned off
Press the Clock button until the LCD comes on.
You will now see a small number 01 in the top right
corner of the LCD. This is feature 01
Press Clock again until you see feature 07
(Receiver Address)
Use the Up/Down keys to set the address. A unique
receiver address must be set for each receiver installed.
(RF is disabled if receiver Address is set to 00)
Press A to accept, the display will now go blank.
4

Pairing the thermostat
On the receiver, press and hold the pairing button until
the Comms LED comes on
Turn off the thermostat by holding down the power
button.
On the thermostat, press the A key for 5 seconds. The
thermostat will send a signal for 1 minute, and will
flash the RF signal icon.
If successful, the receiver will flash the Comms LED.
Press the Pairing Button on the receiver to store
If the pairing is unsuccessful, reposition the thermostat
and try again.
5

Icons Explained
Heating On
Heating Off –Frost Mode
Key Lock
RF Signal Active
Battery
Holiday Active
Temperature Display
Room Temp = This is the current room temperature.
Set = This is the temperature you are trying to achieve in your
home.
6

Setting the Clock
To set the clock, follow the steps below.
With the thermostat turned on, press the Clock button
twice
You are now able to set the minutes using the
Up/Down keys
Press H to accept
You are now able to set the hours using the Up/Down
keys
Press H to accept
You are now able to set the day of the week using the
Up/Down keys
Press A to store and exit
Locking the Thermostat
The thermostat has a key-lock facility. To enable, follow these
steps;
7

Press and hold the A and Down key for 10 seconds
You will see the lock symbol appear
To unlock, repeat the steps above.
Comfort Levels Explained
The thermostat provides Weekday/Weekend or 7 Day
programming. You should consult the Configuration Menu
section to select the required mode.
The thermostat is supplied with comfort levels already
programmed, but these can be changed easily. The default times
are;
08:00 –21C (Wake)
09:30 –16C (Leave)
16:30 –22C (Return)
23:00 –17C (Sleep)
8

If you only want to use 2 levels, you should program the unused
levels to --.—
To begin programming the comfort levels, press Clock
Once
If your thermostat is setup for Weekday/Weekend
programming, you will see Mon-Fri shown. For 7 day
programming you will see Monday, you need to use
Up/Down arrow keys to select which day you would
like to program and then press H key to confirm
Using the Up/Down arrow keys, enter the required
Wake time
Press H
Using the Up/Down arrow keys, enter the required
Wake temperature
Press H
You will see Leave
9

You should repeat the programming for each period,
entering --.—for unused periods.
Note: For weekday/weekend programming, the 4 comfort levels
are the same for all weekdays. For 7 day programming, each day
can have 4 different comfort levels.
Temperature Hold
The temperature hold function is ideal for parties or when you
will be going out for a number of hours. It allows you to hold a
temperature for a desired period.
Press H
Using the Up/Down arrow keys enter the required hold
time
Press H
Using the Up/Down arrow keys enter the required hold
temperature
Press A to accept
10

You will see the Hold indication is displayed which will
countdown the hold duration. To cancel, reduce the Hold time to
00 hours
Temperature Set
Using the Up/Down arrow keys allows you to adjust the set
temperature. When you press either of these keys, you will see
the word SET and the desired temperature.
Press A to accept.
Heat On/Off
Frost Protect: Pressing the power button once will place the
thermostat in frost protect mode. In this mode, the thermostat
will display the frost icon and will only turn the heating on
should the room temperature drop below the set temperature.
Should the heating be turned on whilst in frost mode, the flame
symbol will be displayed. To cancel the frost protect mode, press
the power button.
11

Thermostat off:
To turn the thermostat off completely, press and hold the power
button. The display and heating output will be turned off. To
turn the thermostat back on, press the power button.
Holiday
The thermostat has a holiday function. This allows you to enter a
holiday setting. During a holiday, the thermostat will maintain
the frost set temperature. At the end of your holiday, the
thermostat will revert back to the programmed setting ensuring
that your home is warm on your arrival.
Press H three times (Until you see the suitcase)
Using the Up/Down arrow keys, enter the number of
days holiday
Press A to accept
The thermostat will show a suitcase indicating the thermostat is
in holiday mode. To cancel, reduce the Holiday duration to 00
days.
12

Factory Reset
The thermostat has a factory reset function. This will reset all
settings back to their factory default. To perform a factory reset,
follow these steps;
Turn the thermostat off
Press and hold the Power and Up arrow key until the
LCD powers up. All of the icons will be displayed. When
they have disappeared, the thermostat has been reset.
13

THE FOLLOWING SETTINGS ARE OPTIONAL AND IN MOST CASES
NEED NOT BE ADJUSTED
Optional Features Explained
Feature 01 –Temperature Format: This function allows you to
select between C/F
Feature 02 - Switching Differential: This function allows you to
increase the switching differential of the thermostat. The default
is 1C which means that with a set temperature of 20C, the
thermostat will switch the heating on at 19C and off at 20C. With
a 2C differential, the heating will switch on at 18C and off at 20C
Feature 03 –Frost Protect: You can set whether the thermostat
will maintain the frost temperature when the thermostat display
is turned off. As a default, this is enabled
14

Feature 04 –Frost Protect Temperature: This is the
temperature maintained when the thermostat is in frost mode.
The range is 07-17C. The default is 12C and is suitable for almost
all applications.
Feature 05 –Output Delay: To prevent rapid switching, an
output delay can be entered. This can be set from 00-15 minutes.
The default is 00 which means there is no delay.
Feature 06 –Not used on this model
Feature 07 –Receiver Address: Within one building, up to 32
standalone receivers can be used. Each receiver must have a
unique receiver address.
Feature 08 –Not used on this model
Feature 09 –Not used on this model
Feature 10 –Fail Safe
15

If enabled, the thermostat will send a signal to the receiver every
20 minutes. Should the receiver fail to receive two signals, the
receiver will activate the output for 20% of the time. This is to
protect the system against a loss of wireless signal or should the
thermostat battery fail whilst you are away.
Feature 11 –Up/Down Temperature Limit
This function allows you to limit the use of the up and down
temperature keys. This limit is also applicable when the
thermostat is locked and so allows you to give others limited
control of the heating system.
Feature 12 –Sensor Selection
On this thermostat you can select between built in air sensor
and remote air sensor. A floor sensor must be connected to the
receiver before it will operate.
16

Feature 13 –Floor Limit
This thermostat uses the floor limiting sensor connected to the
receiver to protect the floor surface from overheating. The floor
limit is set from the thermostat but stored in the receiver.
Should the RF link fail, the receiver will limit the floor from
overheating. The limit can be adjusted from 20-45C
Feature 14 –Optimum Start Optimum start will delay the start
up of the heating system to the latest possible moment to avoid
unnecessary heating, so that the dwelling is comfortably warm
by the programmed time. The thermostat uses the rate of
change (see below) setting to calculate how long the building
needs to take to raise the building 1C (with a rate of change of
20, the thermostat has calculated the building needs 20 minutes
to raise the building 1C)
Feature 15 –Rate of Change For information only
17

Feature 16 –Programming Mode The thermostat offers two
programming methods. Weekday/Weekend allows you to
program 4 comfort levels for the weekday and 4 different
comfort levels for the weekend. In 7 day program mode, each
day has 4 comfort levels that can be programmed independently.
Adjusting the Optional Settings
1. To access the configuration menu, turn off the
thermostat by pressing and holding down the power
button.
2. Press and hold down the Clock button until the display
comes on.
3. The small number is the feature number, the large
number is the setting value
4. Use the clock button to cycle through the features.
5. Use the Up/Down keys to change the setting.
6. Press A to accept and store.
18

Feature Table
Feature
Description
Setting
01
Temperature Format
00=C
01=F
02
Switching Differential
01-03C
00C Default
03
Frost Mode
00= Disabled
01 =Enabled
(01= Default)
04
Frost Temperature
07-12C
(12C Default)
05
Output Delay
00-15 Minutes
(00 Default)
06
Not used on this model
07
Receiver Board
Address
Standalone = 01-32
01-32, 00 default
08
Not used on this model
19