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ESRTD5 & ESRTD5VF
Digital Room Thermostat
with TPI & Delayed Start
Installation Instructions
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Thank you for choosing ESi Controls.
All our products are tested in the UK so we are
confident this product will reach you in perfect
condition and give you many years of service.
However, for additional peace of mind, we
recommend you register your product online at
www.esicontrols.co.uk/warranty for your
extended warranty.
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Installation Instructions
1. Technical Data 6
2. Installation 7
2.1 Installation Safety Instructions 7
2.2 General Safety Instructions 7
2.3 Warning Notices 8
2.4 Maintenance 8
2.5 Fitting the Room Thermostat 8
2.6 Installing the Room Thermostat 9
2.7 Wiring Diagram 10
2.8 DIP Switch Settings 11
Contents
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Page 4
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Page 5
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Installation Instructions
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1. Technical data
Thermostat Features Battery Models Mains Models
Hard-wired Hard-wired
Hard-wired, built-in sensor ESRTD5VF ESRTD5
Wireless, built-in sensor
complete with receiver
Temperature Control Class ErP Class 4 (2%)
Energy Efficiency
Technology
TPI (Chrono Proportional) Control,
Delayed Start, Optimum Start,
Delayed Stop
Temperature range 5-35°C
Control output, derived from
PI algorithm
On/Off Chrono-proportional,
3 or 6 cycles per hour
Switching differential in
On/Off mode
+/-1°C
Power supply 2 x AA alkaline cells 230 VAC, 50-60Hz
Switching action of output
relay
SPDT (voltage free) SPDT
Switch rating of output relay 3(1)A 230VAC 3(1)A 10-230VAC
Transmission frequency
(RF models)
N/A N/A
Transmission range
(RF models)
N/A N/A
Dimensions mm 127 long x 81 wide x 28 deep
Design Standard EN60730-1, EN60730-2-7, EN301489,
EN60950, EN300328, EN62479, EMC
Directive 2014/30/EU, LVD Directive
2014/35/EU, RED Directive 2014/53/EU
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2. Installation
2.1 Installation Safety Instructions
The unit must be installed by a suitably qualified person in
accordance with the latest IEE Wiring Regulations. Isolate
mains supply before commencing installation. Please read all
instructions before proceeding.
Ensure that the fixed wiring connections to the mains supply
is via a fuse rated at not more than 3 Amps and Class ‘A’
switch having a contact separation of a minimum of 3mm
in all poles. The recommended cable sizes are 1.0mm sqr or
1.5mm sqr. No earth connection is required as the product is
double insulated but ensure continuity of earth throughout
the system.
2.2 General Safety Instructions
This product complies with the essential requirements of the
following EC Directives:
• Electro-Magnetic Compatibility Directive 2014/30/EU
• Low Voltage Directive 2014/35/EU
• EC Marking Directive 2014/30/EU
Please leave the user instructions with the end user where
they should be kept in a safe place for future reference.
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2.3 Warning Notices
WARNING: Always isolate the AC mains supply before
installing. This product must be fitted by a competent
person, and installation must comply with the guidance
provided in the current editions of BS767 (IEE wiring
regulations) and part “P” of the building regulations.
2.4 Maintenance
Always isolate the mains supply before commencing any work,
servicing or maintenance on the system. And please read all
instructions before proceeding.
Arrange for an annual maintenance and inspection schedule to
be carried out by a qualified person on every part of the heating
and hot water system to automatically return to homescreen.
2.5 Fitting the Room Thermostat
The ideal position to locate the Thermostat is about 1.5m
above floor level, in a location where the thermostat
is accessible, reasonably lit and free from extremes of
temperature and draughts. Do not position the thermostat near
sources of heat, such as radiators, lights, TV, direct sunlight or
on an outside wall.
1.5m
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2.6 Installing the Room Thermostat
1. Use a flat headed screwdriver to press the fastener at
the top of the unit, then gently loosen from the unit,
unhooking from top to bottom.
2. Fix the 35mm back box, terminals at the top, onto a
2 flange metal back box with 2 BM3.5x23 screws. If
installing on a 4 flange metal back box, simply push down
the flanges on the top and bottom to leave the flanges
on the left and right hand side.
3. Route the wires through the back of the wall plate.
Fit the wires to the wall-plate in accordance with
the relevant diagram and in accordance with IEE
regulations.
4. Select personal options by referring to DIP switch menu
(See section 2.2.3).
If there are 4 flanges,
push down the top and
bottom flanges to leave
just 1 on either side.
Use a 35mm back box
with 2 screw flanges.
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5. Fit the unit onto back-plate securing from bottom to
top.
6. Ensure an appropriate fuse is fitted to the circuit before
reconnecting to the mains supply.
2.7 Wiring Diagram
1 L : Live
2 N : Neutral
4 NC (OFF): Normally Closed
5 NO (ON): Normally Open
1 2 3 4 5
L N N/C N/O
ONOFF
N.B. Shown in OFF position
ESRTD5
ESRTD5VF
6mm MAX
1
2 COM
3
NC
NO
ON
OFF
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2.8 DIP Switch Settings - Heating
Option to switch to:
1. Chronoproportional (Chrono)
2. 3 or 6 Cycles (Chrono on, only)
3. Delayed Start
HEAT
COMP DELAY (TPI) OFF COMP DELAY (TPI) ON
6 CYCLES 3 CYCLES
DELAYED START OFF DELAYED START ON
We are continuously developing our products to
bring you the very latest in energy saving
technology and simplicity. However, should you
have any questions setting up your controls
please email us at sales@esicontrols.co.uk or for
technical queries call us on our dedicated technical
helpline 07539 117468.
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Version 6.10.1
WARNING: Interference with sealed parts renders the
guarantee void.
In the interests of continuous product improvement we reserve
the right to alter designs, specifications and materials without
prior notice and cannot accept liability for errors.
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