HERSCHEL 3kW Variable Power Controller Instruction Manual
- June 3, 2024
- HERSCHEL
Table of Contents
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:
References
- Herschel Infrared Heaters: UK No. 1 infrared heating panel manufacturer
- Infrared heating help & support: your help centre from Herschel Infrared
- Herschel Infrared Product Warranty Registration