TPxxx HMB/HMBE Units ONLY
Three Position Rotary Switch TP 508 switching and connection ref EE175
SWITCH POSITIONS
1 - Setback Speed
2 - Continuous Speed
3 - Boost Speed
L U1 U2 U3
TP 508
Three position rotary switch
SUMMERboost® thermostat connection ref EE178
Volt-free control of SUMMERboost®
using one way latching switch.
Volt-free control of SUMMERboost®
using room thermostat.
TP 522
Latching SUMMERboost® switch
TP509
Room Thermostat
Y1
L
Y2
SUMMERboost® Link Wire
SUMMERboost® Link Wire must be
removed to enable SUMMERboost®.
SUMMERboost® Link Wire
15