EPH

EPH Combipack 4 [CP4] Digital RF Programmer

EPH is often overlooked for other, more well known brands, like Salus and Honeywell. However, most EPH products are actually really good. They have a good reputation and a loyal customer base of repeat customers. The EPH Combipack 4 [CP4] Digital RF programmable receiver makes a great cheaper alternative to models such as the Honeywell T3R and T4R. It’s compatible with practically any combi boiler and has some great features.

 

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Installing is relatively straight forward for anyone with simple knowledge of RF thermostats, and the operating of the programmer itself is fairly simple and, overall, easy to use. Although some users disagree. The unit has a nice pale blue back-lit display and the digital readout is slightly bigger than most, so its easy to read. Despite some potential buyers being confused about this model, asking if this is a WiFi thermostat.

The answer is no, its not WiFi compatible. It is wireless and connects via an RF frequency, so this model can not be used as a “smart” thermostat. The back light on this model has 2 different settings. Those consist of auto mode, which is the default setting, and completely off if you have no use for the light.

 

EPH Combipack 4 [CP4] Features / Specification

  • 1 Heating zone
  • 7 day – 5/2 day and 24 hour programmable
  • Up to 6 temperature changes per day
  • OpenTherm® Optimum Start and TPI
  • Boost mode
  • Copy program compatible
  • Manual override
  • Temporary override
  • Permanent override
  • Holiday mode
  • Frost protection
  • On and Off modes
  • Boiler Plus Compliant
  • Keypad lock
  • Reset button
  • Differential temperature adjustment
  • Re-calibrate option
  • Low battery indicator symbol
  • Takes 2 AA batteries
  • Comes with a 1 year guarantee
  • Desktop stand or wall mounted

 

There is a fairly extensive and well-written manual for the EPH Combipack 4 [CP4] that should cover most of your questions and troubleshooting queries. For the user manual / wiring diagram in PDF format you can read / download that here from the official EPH Controls website.