Control System
YKN 2 open
The YKN2open is a controller regulating all components and accessories. It will pro actively manage cool
and heat stages to maintain a stable room temperature maximizing the efficiency.
Additionally, the benefits are:
• Redundancy on cool and heat stages (if one step is locked out, the PCB starts another one automatically).
• Random start between units to minimise electrical tariff.
• All stages will start in sequence to reduce peak inrush.
• Reduces nuisance calls by using 3 times “you are out” on all safeties before a hard lockout occurs.
• Automatic restart after power failure. Compressors run time priority.
• Alarm output relay and led diagnostic code. No parameters to check before starting.
• Lockout and incident level of protection. Last 10 lockouts stored in a non-volatile memory.
• 4 heating stages on hot water heating.
• BMS connection (N2 Open protocol).
YKtool N 2 open
The Yktool is the perfect tool to use on a regular basis for
comissioning and service on site. For comissioning, it will override
the thermostat and start the cooling or heating stages. Being a plug
and play device, you will have direct acess to all sensors and status
of each components and accessories installed (lockout & incidents,
temperatures, defrost test...).
Code: S613786031
166