EPH Controls RDT Istruzioni operative

Installation and Operation Guide

Recessed Room Thermostat

RDT

Factory Default Settings

Specications

LCD Display

Buttons

Wiring

Mounting & Installation

Locking the Keypad / Backlight

Menu Function

On / O Function & Adjusting the Target Temperature

Table of contents

Installation Instructions

Operating Instructions

Delay Start Control (On/O)

P0 1 Operating Mode

Nor (Normal Mode)

Time Proportional Integral Mode (TPI)

P0 2 Setting High and Low Limits

P0 3 Hysteresis HOn and HOFF

P0 4 Calibrate

P0 5 Setback Mode

FP Frost Protection

Resetting the Thermostat

Mains operated non-programmable

Room Thermostat with Setback

Installation Instructions

2RDT

Factory Default Settings

High and Low Temp. limitation: O

Keypad lock: O

Operating mode: Normal

Temperature indicator: ˚C

Frost protection: On (5˚C)

Setback temperature: 0˚C

HYS On: 0.4˚C

HYS OFF: 0.0˚C

EPH Controls Ltd.

Specications

Contacts: Volt Free

Power supply / Input: 230VAC

Power consumption: <1W

Temperature range: 5…35˚C

Ambient temperature: 0…45˚C

Ambient admissible humidity: 5-95%RH

Contact rating: 10(3)A 230VAC

Dimensions: 95 x 95 x 40mm

Internal temperature sensor: NTC 100K

Backlight: White

IP rating: IP20

Pollution degree: 2

Hysteresis (Switching dierential): Adjustable from 0 to 1°C

0.1°C increments

Automatic action: 1C

Setback temperature: Adjustable 0 to 10˚C

4RDT

[1]

[10] [9] [8]

[11]

[3] [4] [5][2]

[6]

[7]

[12]

[1] Displays when setting target temperature.

[2] Displays current room temperature.

[3] Displays current / target temperature.

[4] Displays when changing mode setting.

[5] Displays when setting TPI mode.

[6] Displays when keypad is locked.

[7] Displays when the thermostat is calling for heat.

[8] Displays when thermostat is in the OFF mode.

[9] Displays when setting HIGH and LOW temperature limit.

[10] Displays during calibration mode.

LCD Display

[11] Displays when setting

hysteresis.

[12] Displays when

setback mode is

enabled.

EPH Controls Ltd.

Buttons

OK Button

Down Button Up Button

Standby Button

6RDT

Wiring

Terminal Connections

LLive In

NNeutral In

Terminal 1 OFF - N/C Normally closed connection

Terminal 2 ON - N/O Normally open connection

Terminal 3 COM - Common connection

Terminal 4 SB - Setback connection

230V on Terminal 4: Thermostat works in Normal mode

0V on Terminal 4: Thermostat works in Setback mode

* If mains output is required terminals L and 3 must be electrically linked.

EPH Controls Ltd.

Mounting & Installation

Caution!

Installation and connection should only be carried out by a qualied person.

Only qualied electricians or authorised service sta are permitted to open the

thermostat.

If the thermostat is used in a way not specied by the manufacturer, its safety may

be impaired.

Prior to setting the thermostat, it is necessary to complete all required settings

described in this section.

Before commencing installation, the thermostat must be rst disconnected from

the mains.

This thermostat can be mounted to a recessed conduit box.

8RDT

1) Remove the thermostat from its packaging.

2) Choose a mounting location so that the thermostat can

measure the room temperature as accurately as possible.

- Mount the thermostat 1.5 metres above the oor level.

- Prevent direct exposure to sunlight or other heating /

cooling sources.

3) Use the fastening clip on the base of the thermostat to release

the front housing from the rear wiring box as per diagram on

page 9.

4) Wire the thermostat according to the wiring diagram on page 6.

5) Screw the rear wiring box to the recessed back box.

6) Attach the front housing to the rear wiring box until it clips

securely into place.

Mounting & Installation Continued

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