Heatmiser PRT-R2 User manual

Operating

Instructions

PRT-R2

REV: 1

Heatmiser UK Ltd Tel: +44(0)1254 776343

Primrose House www.heatmiser.co.uk

Primrose Street

Darwen

Lancashire

BB3 2DE

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 1

Contents

Contents 1

Button Layout 2

LCD Symbols 3

Installation 4-6

Initial Setup 7-11

Temporary Temperature Adjust 12

Turning the Heating Off 12

Setting the comfort levels 13-14

Wiring

PRT-R2 Wiring Diagrams 16

Power

On/Off

Clock

Button

“H”

Button “A”

Button

“Down”

Button

“Up”

Button

InfraRed

Receiver

Button Layout

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 3

LCD Symbols

Clock Indicator

Heat Active Indicator

Frost Mode On

Floor Temperature Over Limit

KeyLock On

1.Installation

1. The thermostat is flush mount, a back box of 35mm

should have been sunk in the wall prior to installation.

2. The thermostat should be mounted at around 6ft or

eye level.

3. Do not install near a direct heat source.

Step 1

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.

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 5

Step 2

Carefully unplug the ribbon connector which is

plugged in to the front half of the thermostat.

Place the thermostat front half somewhere safe.

Terminate the thermostat as shown in the diagrams at

the back of this booklet.

Screw the thermostat back plate on to the back box.

Step 3

Re-connect the thermostat ribbon cable and clip the

two halves together.

Step 4

Turn on the power to the thermostat and allow

the thermostat to stabilise for 1 hour before

calibrating.

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 7

3. Initial Setup

A) Frost Protection (Thermostat Off)

You now need to decide if you wish the thermostat to

maintain the frost temperature when you have turned

the thermostat off by using the Off button.

• Turn the thermostat Off

• Press for 3 seconds.

• Select 01 to enable Select 00 to disable

• Press Off to store

B) Frost Protection Temperature

On the PRT-R2 you are able to adjust the frost

protection temperature. The range is 07-17°C

• Turn the thermostat off

• Press and A for 3 seconds.

• You can now enter the required temperature.

• Press the Off button to store

C) Calibrating the PRT-R2

The PRT-R2 has a room (built in to the thermostat)

and remote floor sensor. The room sensor must be

calibrated when it is first installed. The floor sensor

does not require calibration.

To calibrate the sensor, first obtain an accurate sensor

reading from an accurate thermometer and then follow

the steps below.

• Turn off the PRT-R2

• Press and H for 3 seconds

• Using the Up/Down arrow keys select the correct

temperature

• Turn the thermostat off to store the temperature.

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 9

910

D) Setting the Clock

To set the clock within the PRT-R2, follow the steps

below.

• With the thermostat turned on, press 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

The clock is now set. The PRT-R2 has a battery which

maintains the clock on a power failure. All program

settings are retained in flash memory for 10 years.

E) Enabling / Disabling the floor limit sensor

The PRT-R2 is supplied with a floor sensor probe. This

sensor is used to prevent the floor from overheating.

The floor sensor is enabled as a factory default, to

disable follow the steps below.

• With the thermostat turned on, press the H and Up

arrow key for 5 seconds.

00 = Disabled

01 = Enabled (Factory default)

If the remote sensor probe has been enabled, the

PRT-R2 will detect if the sensor is faulty /

disconnected. In such a case, the heating will turn off

so that there is no risk of the floor surface overheating.

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 11

F) Setting the floor limit temperature

If you have enabled the floor sensor probe, you need

to set the floor limit temperature. Should the floor

temperature reach this limit, the heating will be turned

off and will be displayed on screen.

• With the thermostat turned off, press H and Up arrow

key

• Use the Up/Down arrow keys to select the floor limit

temperature. 28 is the factory default.

• To store, press the Off button.

Viewing the Floor Temperature

Press and hold the A button to view the floor

temperature.

Temperature Override

Using the Up/Down arrow keys you can adjust the

current set temperature. On the screen, you will see

SET and the new temperature displayed.

This temperature will be maintained until the next

programmed comfort level.

Turning The Heating Off (Frost Protection)

By pressing the H button, the thermostat will switch

into frost protection mode. You will see a frost symbol

on screen.

The frost protection temperature will now be

maintained. To cancel, repeat the steps above.

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 13

Setting the Comfort Levels

The PRT-R2 has 4 comfort levels for the weekday and

4 for the weekend. This method of control is not to

have on/off times but to allow the occupant to set

varying temperatures throughout the day.

For example;

08.00 - 21 (Wake) 09.30 - 16 (Go to work)

16.30 - 22 (Return home) 23.00 - 17 (Sleep)

If you only want to use 2 levels, you should program

the unused levels to --.--

You are now able to program the first comfort level for

the weekday.

Follow these steps;

• To begin programming the comfort levels, press

once. You will see Mo - Fr displayed.

• Use the Up/Down arrow keys to select the time for

the 1st comfort level for the weekday.

• Press H to accept

• Enter the required temperature for the 1st comfort

level.

• Repeat for comfort levels 2-4.

• You will now see Sa Su on the screen. Repeat for

the comfort levels for the weekend.

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 15

Keylock Function Enable/Disable

This function allows you to lock the keypad. To use this

function, you first need to enable it.

• Turn the thermostat off

• Press the A and Up arrow key for 10 seconds

• 00 = disabled 01 = enabled

• Press A to store

Turning on the Keylock

• With the thermostat turned on, press A and UP for 10

seconds

• You will see on screen. This shows the keylock

function has been enabled.

• To cancel, press A and UP for a further 10 seconds.

15 16

Set-point range: 5-35 °C (Room)

Set-point range: 20-45 °C (Floor)

Switch Current Rating: <16A

Heatmiser PRT-R2

PRT-R2 Manual REVISION 1.qxd 18/11/2005 12:27 Page 17

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