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PROTHERM Ray 14kW electric heating boiler (v.14)

PROTHERM Ray 14kW (RAY 14 KE /14 EU) is a wall-mounted electric heating boiler with continuous output modulation, designed for hydronic heating systems in houses, apartments and other suitable buildings. Heating output is regulated from 2.3 to 14 kW, allowing heat generation to follow the actual demand of the heating system. The official PROTHERM product number for RAY 14 KE /14 EU is 0010023673.
The RAY KE series features continuous output modulation, automatic diagnostics and integrated weather-compensated control. eBUS communication enables compatible PROTHERM controllers to be connected for more precise heating-system management according to indoor and outdoor conditions.
A high-efficiency heating circulation pump and an 8-litre expansion vessel are integrated into the boiler. Built-in safety functions include frost protection, while digital control provides convenient adjustment and monitoring of operating parameters.
PROTHERM Ray 14 KE can also be used to prepare domestic hot water in an external indirect cylinder with the appropriate connection kit and three-way diverting valve. Heating-water temperature can be adjusted from 25 to 85 °C and domestic hot-water temperature from 35 to 70 °C.
The RAY 14 KE is designed for a 400 V / 50 Hz electrical supply. PROTHERM specifies a recommended 25 A circuit breaker. Electrical protection is IP40. Dimensions are 410 × 315 × 740 mm and weight is 33.3 kg.
Main advantages
- Maximum heating output 14 kW
- Heating output range 2.3–14 kW
- Continuous output modulation
- Automatic diagnostics
- Integrated weather-compensated control
- eBUS communication
- High-efficiency circulation pump
- Integrated 8 l expansion vessel
- Frost protection
- Digital controls
- HDO signal power contactor
- Compatible PROTHERM controller support
- External DHW cylinder support
- Heating-water temperature 25–85 °C
- DHW temperature 35–70 °C
- 400 V / 50 Hz electrical connection
- IP40 protection
- Compact wall-mounted construction
Technical information
| Parameter | Value |
|---|---|
| Manufacturer | PROTHERM |
| Series | Ray |
| Model | RAY 14 KE /14 EU |
| Version | v.14 |
| Product type | Wall-mounted electric heating boiler |
| Heating output range | 2.3–14 kW |
| Maximum heating output | 14 kW |
| Heating-water temperature range | 25–85 °C |
| DHW temperature range | 35–70 °C |
| Electrical connection | 400 V / 50 Hz |
| Recommended circuit breaker | 25 A |
| Expansion vessel | 8 l |
| Electrical protection | IP40 |
| Communication | eBUS |
| Continuous output modulation | Yes |
| Weather-compensated control | Yes |
| Automatic diagnostics | Yes |
| Frost protection | Yes |
| High-efficiency circulation pump | Yes |
| HDO control contactor | Yes |
| External DHW cylinder support | Yes |
| Heating flow connection | G 3/4" |
| Heating return connection | G 3/4" |
| Dimensions (W × D × H) | 410 × 315 × 740 mm |
| Weight | 33.3 kg |
Warranty, months: 24