The G422 controller is a development of earlier versions, enhanced with additional functions. The ErP energy efficiency directive has introduced the need to replace traditional circulation pumps with new high-efficiency ones with electronically controlled rotation. The G422 controller allows the operation of both standard fixed-speed pumps and pumps with electronic speed control. A second important extension of the controller’s functionality is the possibility of connecting a pressure sensor in the solar thermal system. This allows control of the plant’s operating conditions, also remotely in conjunction with the EKONTROL remote monitoring system.
The G422 controller is an integral part of 1-way pump and control units, e.g., ZPS 18e-01 ECO, ZPS 18-02 ECO or ZPS 28-01 ECO. If it is necessary to order the controller separately, it is also possible to use the GH26 controller version, which is a twin version of the G422, but intended for wall mounting etc.
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- intuitive and comfortable operation thanks to large LCD display
- selectable circulating pump type: fixed speed and electronic
- possibility to connect 6 NTC10k-type temperature sensors
- possibility to connect 3 circulation pumps and/or control valves
- 2 electronic pumps can be controlled (PWM)
- possibility of connecting 2 electronic flowmeters (G-916)
- possibility to connect a pressure switch for pressure control in the solar thermal installation
- can be combined with UPS device (solar pump backup)
- handling min. 19 diagrams of solar thermal systems, including heating support and pool water heating
- reducing the operation of the primary heat source, e.g., the boiler
- selection of the operating priority of the solar thermal system (domestic water, heating support, swimming pool water)
- time programmes for the operation of circulation pumps, e.g., the hot water circulation pump
- extended timing function for the domestic hot water circulation pump
- hygiene function (periodic antibacterial heating)
- protection of solar thermal collectors against overheating
- history of solar thermal collector overheating conditions (> 135°C)
- protection of the domestic hot water storage tank against overheating (heat transfer to the fixed boiler)
- holiday function to protect the system from overheating during extended periods of no heat extraction
- graphical display of current temperatures and system operating states
- graphical display of heat gains over time (daily, weekly, monthly and multiannual counters)
- early visual and acoustic signalling of emergency conditions
- continuously updated indication of the heating capacity of solar thermal collectors
- continuously updated display of electricity consumption by the solar circuit pump
- information on the active antibacterial heating function (anti-legionella) of the controller
- option to connect the EKO-LAN module for remote monitoring of the EKONTROL plant operation
- 22 language versions available
Cat. No.:
74.02.01
Number of temperature sensors:
max. 6
Number of circulating pumps supported:
max. 3
Control method:
Driver panel
Assembly:
In the ZPS unit pump
Cat. No.:
74.02.01
Number of temperature sensors:
max. 6
Number of circulating pumps supported:
max. 3
Control method:
Driver panel
Assembly:
In the ZPS unit pump