Installation Manual
8 | (215) 788-8485
Opon 1 - Convenonal (furnace) Systems:
Step 2.7f: Follow the terminal labels
marked “Convenonal” on the thermostat
base. Press the lever and insert each
labeled wire into the top hole of the
corresponding terminal.
Step 2.8f: If you have both an RC and RH wire present, then remove the
red cap next to the reset buon. You can now proceed to step 2.9.
Opon 2 - Heat Pump Systems:
Step 2.7hp: Follow the terminal labels
marked “Heat Pump” on the thermostat base.
Referencing your wiring photo, press the
lever and insert each labeled wire into the top
hole of the corresponding terminal.
If your old thermostat did not have a W1 wire but did have a W2 wire,
insert the W2 wire into the W1 terminal.
Step 2.8hp: If you have both an O wire and a B wire
(i.e. in a Trane system), install the B wire in the “C” terminal.
For more detailed direcons, please see the wiring diagrams in the
appendix or call H2O Degree technical support at (215) 788-8485
CONVENTIONAL C Y1 W2
HEAT PUMP C Y1 O/B
POWER BRIDGE 4
CONVENTIONAL C Y1 W2
HEAT PUMP C Y1 O/B
POWER BRIDGE 4