Equipment
Furnace
| Specification | Details |
|---|---|
| Make | Carrier |
| Model | 59TP5A080 |
| Filter Size | 16 x 25 x 4 3/8" Actual Size: 15 7/8 x 24 7/8 x 4 3/8 |
| Details | Performance Series’ two stage high efficiency gas |
| Manual |
Air Conditioner
| Specification | Details |
|---|---|
| Make | Carrier |
| Model | 24ABB330A003 |
| Details | ‘Comfort Series 13’ two and half ton air conditioning Carrier CNPVP3617 - Three ton air conditioning cased coil |
Dampers
| Specification | Details |
|---|---|
| Make | Robert Shaw |
| Model | DAOP1808E2 |
| Description | Rectangular Motorized Control Damper |
Zone Control System
| Specification | Detail |
|---|---|
| Make | Robertshaw |
| Model | Slimzone 2701-001/2701-006 |
| Description | Zone Control System |
| User Manual |
Zone Control System
Wiring
Dampers
Two wire dampers are powered closed and spring return open. Three wire dampers are powered closed and powered open.
Our dampers are two wire dampers and should be connected to PC and X (Common).
LED Status Indication
Thermostat
| Connection | Description |
|---|---|
| Y1 | Cool |
| Y2 | |
| G | Fan |
| OB | |
| Rc | Power |
| W1 | Heat |
| W2/AUX | |
| C | 24V Common |
| * | Humidifier |
| Rh |
Heat and AC Hookup
Heat, AC and Humidifier Hookup
Bypassing the Thermostat
The thermostat is reponsible for calling for heat and colling when the temperature gets to high or too low. To do this, it closes relays in the thermostat. All wiring is 24vac.
| Connection | Description |
|---|---|
| Y1 | Cool |
| Y2 | |
| G | Fan |
| OB | |
| Rc | Power |
| W1 | Heat |
| W2/AUX | |
| C | 24V Common |
| * | Humidifier |
| Rh |
From the thermostat wiring above, if you wanted to test the AC, you would jumper Y1(Cool) with Rc(Power). Doing so, should turn your AC on.
Humidifier
Modifications to the Humidifier
In order to have the humidifier work effectively with the nest thermostat, we should drive the solenoid only. We will not need the flow check switch or the on furnace mounted humidistat.
Remove wire from furnace mounted thermostat.
Remove the wire to the furnace mount thermistat at the solenoid controller.
Remove the cap to the controller and cut the wires for the flow check switch and marret the connections together. The other 2 wires go to the solenoid valve.
The end result should be resemble the following:
Wiring the Humidifier
In my zone control cabinet, I connected both *(HUM) wires from the thermostats to the HOT line of the humidifier.
Installers
HOWARD BOYLE
Heating and Air Conditioning
1726 Bank St. Unit ‘C’ Ottawa ON, K1V 7Y6
Tel. (613) 829-4000 Fax. (613) 829-3066
TroubleShooting
| Problem | Solution |
|---|---|
| Whistling Sound | Bypass is open meaning that both zones are closed. Probably stuck flap. |
References
| Reference | URL |
|---|---|
| Nest Pro Installer Guide | http://support-assets.nest.com/images/pro-faq/Nest-Pro-Installer-Guide.pdf |
| How to Connect & Setup a Nest Thermostat to Function as a Humidistat | https://ohmefficient.com/connect-nest-thermostat-humidistat/ |
| How to Bypass an HVAC Thermostat | https://www.youtube.com/watch?v=9Y_R9unnadI |
Robert Shaw Zone Control System |