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| Specification | Allied Air 31Y97 MyHomeComfort CA4 Communicating Thermostat |
|---|---|
| Brand | Allied Air Enterprises |
| Model | 31Y97 |
| SKU | 108484 |
| Component role | Thermostat |
| Lifecycle | Current |
| Building systems | Not specified |
| Requires | Not specified |
| C wire requirement | Required; C is 24 VAC return |
| Control signal types | RSBus communicating control (I+ and I−) |
| Display type | 7-inch high-definition color touchscreen |
| Electrical connections | R and C: 18 AWG unshielded; I+/I−: 18–22 AWG, follow installation wiring options |
| Included items | CA4 thermostat, subbase, four mounting screws, four wall anchors, quick-start guide, warranty certificate |
| Keypad lockout | Unlocked, partially locked (setpoints remain adjustable), or locked; hold lock icon 5–6 seconds to unlock |
| Local controls | Touchscreen |
| Measured variables | Room temperature and relative humidity |
| Power sources | Hardwired AC |
| Remote sensor support | Up to six optional MyHomeComfort Smart Room Sensors; catalog number 31Y95 |
| Scheduling | Up to four separate schedules plus Schedule IQ |
| Supply voltage | 24 VAC at R and C |
| System modes | Off, heat only, cool only, auto; emergency heat for applicable heat-pump systems |