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Issue 1.0
Product Overview
The E8210 thermostat combines the functionality of a standard set-back thermostat with a set-forward
thermostat all in a single wall-plate style of unit. This gives the end-user the ability to select between
1 of 3 different fixed temperature levels (Low, Med, High) to allow greater end-user control when
compared to a set-back thermostat, but its tamperproof features prevent unauthorised modification of
the temperature setpoints.
The medium level temperature setpoint (“Med” mode) is adjustable b12°C and +26°C while
the “High” and “Low” modes are adjustable between 0°C and 7°C above and below the “Med” setpoint.
The end-user is able to select between these 3 modes via the touch-sensitive pushbutton. LED
indicators on the front plate illuminate to display which mode the thermostat is operating in.
All setpoints are combined with an adjustable temperature hysteresis (differential) which is adjustable to
anything between 0.25°C and 4°C.
Product Wiring
1. Power to the thermostat is provided via the 2-way terminal block.
•
Product codes without any suffix are mains powered using the terminals labelled L and N
(230V AC, 50Hz).
•
Product codes with the “/24V” suffix are 24V powered using the terminals labelled 24V (24V
AC or DC).
2.
A voltage-free changeover relay output capable of switching loads of up to 10A, 250V AC (resistive)
is provided by the thermostat at the “NC, COM, NO” terminals.
3.
The Common “COM” terminal is connected to the Normally Open “NO” terminal when the sensed
room temperature is above the selected temperature.
4. Conversely, it is connected to the Normally Closed “NC” terminal when the room temperature is
sensed to be below the selected temperature.
Figure 1
Typical wiring example
Ensure the electrical supply is isolated before making any connections or adjustments.
!
All electrical installation and maintenance must be carried out by a competent person. If in doubt, consult a
qualified electrician. Any new wiring must be carried out by qualified personnel in accordance with the current
edition of the IET Wiring Regulations (BS7671), or those specifically applicable to your area.
!
