Various Switches Available

Boost Switch (latching) - (TP502)
Activates Boost function on all HRV and CME units

Boost Switch (momentary) - TP503
Activates Boost (timer overrun) function on Q Plus units only

SUMMERboost® Switch - TP522
Disables SUMMERboost® on HRV HMB suffix units only.  Can be used on aurastat® and auramode®

Multifunction Relay (TP505)
Enables multiple switching configurations and mains voltage switching for Q Plus units

3 Speed Switch(TP508)
A 3 position rotary switch to change between setback, continuous or boost running speeds