Energotech EVR - User Manual

i
Read this instruction before installation
and wiring of the product
EVR
Consult documentation in all cases where this symbol
is used, in order to nd out te nature of te potential
hazards and any actions to be taken
1
INSTRUCTION
EVR
Technical data
Supply voltage
Power output
Ambient temperature
Storage temperature
P-band
I-time
Pulse period
Indicator
Mounting
Protection class
Control unit parameters
200...415 V AC, 50...60 Hz, 1- or 2-phase,
with automatic voltage adjustment.
Up to 16A, min. 1 A.
At 230 V, max. 3.6 kWmin. 230 W.
At 400 V max. 6.4 kWmin. 400W.
Max. 30°C (Note: EVR generates 20 W
heating at full load.)
-40...+50°C.
20 K (rapid temperature changes),
1.5 K (slow temperature changes)
6 min (rapid temperature changes).
60 s.
Red LED on EVR, lights up as power is
pulsed to the heater.
Wall.
IP20.
ulirntrl: PI function using P-band
20 K and I-time 6 min. Rmntrl: P func-
..
Measurement range 0...30°C.
For E brand NTC sensors and
setpoint devices, temperature range depends
on measurement range of sensor.
0.3kg.
153x93x40 cm.
0...30°C.
0...10 K.
Built-in sensor
Input external
sensor/ setpoint
Weight
Dimensions (HxBxD)
Settings
Setpoint
Night set-back
Control principle
EVR pulses the full load On-Off. EVR adjusts its mean power output to
the prevailing power demand by proportionally adjusting the ratio between
On-time and Off-time. The pulse period (= the sum of On-time and Off-
time) is fixed 60 seconds.
EVR has zero phase-angle firing to eliminate RFI.
EVR automatically adjusts its control mode to suit the control object
dynamics.
For rapid temperature changes (i. e. supply air control), EVR will act as a
PI controller with a proportional band of 20K and a reset time of 6
minutes.
For slow temperature changes (i. e. room control), EVR will act as a P
controller with a proportional band of 1.5K.
Assembly
Remove the front (the locking screw is located behind the setpoint
knob) and mount EVR vertically, so that the cooling flange is at its top.
Screws with a maximum head diameter of 5.5mm can be used.If
EVR is to be used with the internal sensor, mount it approx. .5
above floor level at a location with a representative temperature. The
air must be able to circulate freely around the EVR, without
disturbances from doors, furniture, etc.
If EVR is to be used with an external sensor it may be placed in any
location.
EVR emits approx. 20W of heat which must be dissipated.At
full load, the maximum ambient temperature is 30°C.
Electrical installation
The installation, which should be proceeded by a fully isolating switch
with a contact gap of at least 3 mm, should be carried out by a quali-
ed technician and in accordance with applicable directives.
K12U34UKGG
Figure 1: Wiring of supply voltage and heater
Terminals 1 and 2:
Supply voltage:
Maximum current:
Terminals 3 and 4:
Maximum load:
Minimum load:
Not polarity sensitive.
200 - 415V AC, 50 - 60 Hz with automatic
voltage adjustment.
16A.
Resistive single- or two-phase heater
3680W at 230V (16A)
6400W at 400V (16A)
230W at 230V (1A)
400W at 400V (1A)
CAUTION: The cooling ange is live!
1797I
APR 13
EN
Triac controller for proportional control
of electric heating
EVR is a complete proportional controller for electric heating. It has
automatic voltage adjustment and can be used with either a built-in
sensor or an external sensor. EVR pulses the whole load On -Off.
The ratio between On-time and Off-time is varied 0 - 100% to suit the
prevailing heat demand. The current is always switched at zero
phase angle to prevent RFI.
EVR is only intended for control of electric heating: its con-
trol principle makes it unsuitable for control of motors or lighting.
EVR
R.

Summary

EVR Product Overview and Safety

Triac Controller for Electric Heating

Description of EVR as a proportional controller with automatic voltage adjustment for electric heating.

Important Safety and Usage Warnings

Guidance on consulting documentation for hazards and actions, and EVR's intended use.

Technical Data and Control Principles

Technical Data Summary

Key technical specifications including supply voltage, power output, temperature limits, and timing.

Control Principle Explanation

Details on EVR's On-Off pulsing, zero phase-angle firing, and adaptive PI/P control modes.

Settings and Night Set-back

Information on default settings for setpoint and night set-back temperature adjustments.

Assembly and Electrical Installation

Mounting and Assembly Instructions

Guidance on mounting EVR vertically, ensuring cooling flange is at the top and proper air circulation.

Electrical Installation Requirements

Instructions for installation by a qualified technician using a fully isolating switch with a 3mm contact gap.

Wiring Diagrams and Configuration

Internal vs. External Sensor Wiring

Diagrams and instructions for configuring EVR with internal or external sensors and setpoints.

Room Control Wiring

Wiring configurations for room control using external sensors and setpoints like TG-R430 or TBI-xx.

Night Set-back Wiring

Diagram showing how to wire the night set-back function using terminals K and K.

Operation and Troubleshooting

Setpoint Range Limiting

Procedure for mechanically limiting the setpoint range using rings behind the setpoint knob.

Start-up and Fault Finding

Steps for initial check, voltage connection, and verifying LED operation for proper function.

Troubleshooting Common Issues

Guidance on sensor resistance checks and switch settings for resolving operational problems.

Energotech EVR Specifications

General

Accuracy	±0.5°C
Display	LCD
Protection Rating	IP20
Type	Electronic
Power Source	Electric