HERSCHEL 3kW Variable Power Controller Instruction Manual

: June 3, 2024
: HERSCHEL

Table of Contents

HERSCHEL 3kW Variable Power Controller
INSTALLATION & OPERATING INSTRUCTIONS
IMPORTANT SAFETY PRECAUTIONS
INTRODUCTION
FEATURES
INSTALLATION
SPECIFICATIONS
DIMENSIONS & WEIGHT:
FUSING
WARRANTY
References
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Download This Manual (PDF format)

HERSCHEL 3kW Variable Power Controller

INSTALLATION & OPERATING INSTRUCTIONS

ELECTRICAL EQUIPMENT:
Waste electrical products should not be disposed of with household waste. Please recycle where facilities exist.

IMPORTANT NOTICE TO PURCHASER:
Before utilizing the product, user should determine the suitability of the product for its intended use. HERSCHEL INFRARED LTD expressly disclaims the implied warranties and conditions of merchantability and fitness for a particular purpose. In no case shall HERSCHEL INFRARED LTD be liable under any legal theory, including but not limited to contract or strict liability, for any direct, indirect special, incidental or consequential damages resulting from product use.
Original instructions covering the 3kW Variable Power Controller produced 112021 onwards.

IMPORTANT SAFETY PRECAUTIONS

READ THESE INSTRUCTIONS CAREFULLY AND KEEP FOR FUTURE REFERENCE
Failure to observe these instructions will invalidate the warranty.

WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY:

Switch off the mains supply before commencing any installation or service work.
The controller can be mounted recessed in a wall, provided the IR load is rated below 2KW. For a load rated above 2KW, the unit must be mounted proud of the wall to ensure adequate cooling.
The controller should be connected according to the wiring diagram below, using cables suitable for the maximum load rating of the IR heater load.
It is recommended to use a suitably rated semi-conductor protection fuse or Z-type MCB to protect the internal triac device (max rating 20Amps).
This unit MUST be EARTHED
Installation must be carried out in accordance with the current IEE regulations (BS7671)

IMPORTANT

Ensure all earth wires are connected to maintain earth continuity.
Check all wiring and make sure the cable glands are tightened.

SAVE THESE INSTRUCTIONS.

INTRODUCTION

The 3kW Variable Power Controller is a compact, low-cost, enclosed unit for controlling the power from 0-100% for Herschel infrared space heaters. The controller is housed in a metal double-gang, wallmounted patress enclosure & has integral Radio Frequency Interference suppression.

FEATURES

Integral RFI network for EMC compliance.
On/Off switch, when turned fully anti-clockwise
Plug-in power connector block.
Wall mounting.
Rugged and compact.
Designed to maximise thermal dissipation.
Simple wiring via knockouts in case.

INSTALLATION

When wall mounting, the unit must be orientated with the cable glands facing down.

SPECIFICATIONS

Triac limiting RMS. On state cycle 25A
Peak one cycle surge @ (10mS) 320A
Min. operating current 200mA
Max. forward volts drop at 10A 1.5V
Max. load at 30ºC ambient 13A
Max. unit operating temperature 65ºC
Isolation voltage 2500V RMS
I2t limiting value for fusing 112A2s
Unit limiting RMS. On state current 13A
Mains supply tolerance, +/- 10% 230V or 110V AC
Mains frequency 50/60Hz
Unit storage temperature range 0 TO +65ºC

DIMENSIONS & WEIGHT:

140mm (W) x 80mm (H) x 44mm (D)
Potentiometer Shaft diameter 6.3mm
Potentiometer Bush length 7mm

FUSING

The unit comes with an integral 8A Protection fuse (32mm FF type). On initial “switch”
on, some loads may need an increased Factor of Safety for Unit and/or Device protection.
NOTE:
It is recommended that installation and maintenance of this equipment should be carried out by suitably qualified personnel, with reference to the current edition of the I.E.E. Wiring Regulations BS7671. The regulations contain important requirements regarding the safety of electrical equipment.

WARRANTY

Register your product here: https://www.herschel-infrared.co.uk/customer- service/warranty-registration/
The 3kW Variable Power Controller is guaranteed against failure due to faulty materials or workmanship for two years from date of purchase. In the unlikely event of failure of the unit within this time, the unit must be returned to the supplier for repair or replacement. The guarantee is invalid if the correct installation instructions as given in this leaflet have not been adhered to. Refer to Herschel Infrared Ltd’s
warranty policy for full details. See https://www.herschel-infrared.co.uk/ Note your serial number for future reference: