EMERSON Blue Series 2" 1F89-0211 Thermostat | Montreal, Laval, Longueuil, South Shore & North Shore
A central heat pump with backup, and one temperature all winter long: the 1F89-0211 runs both heating stages with no schedule to enter.
Quick facts
In your house, nobody touches the thermostat from November to April: one temperature, day and night. Your central heat pump has a backup stage, so you need a heat pump thermostat, just not a schedule. The Blue Series 2" 1F89-0211 (the White-Rodgers line from EMERSON) is that thermostat: non-programmable, built for heat pumps with 2 heating stages and 1 cooling stage.
Plain control for a heat pump with backup
- 2/1 heat pump: single-stage compressor and one backup or emergency heating stage, one cooling stage.
- Non-programmable: the setpoint stays where you put it.
- Load rating: up to 1.5 A per terminal and 2.5 A total.
- Adjustable differential: 1.2 °F in heating and in cooling.
- Short-cycle protection and Cool Savings: the first protects the compressor, the second targets summer cooling peaks.
- Display: 2 sq. in. blue backlit LCD with large characters; recalibration possible.
Where it fits
The 1F89-0211 is made for a single-stage heat pump with backup heat, on the R, C, W2, Y, O/B, G and L terminals. A furnace alone calls for a conventional thermostat, and the manufacturer’s documents do not provide dual-fuel control on this model. It is not designed for hot water or steam, or for baseboards, electric floor heating or wall or ducted heat pumps.
Compared with nearby models
In its 2025 cross-reference table, the brand lists the EMERSON 80 Series 1F83H-21NP to replace the 1F89-0211. Also non-programmable, it has an E terminal, fast, medium or slow differentials and setpoints up to 37 °C, and its sheet lists a dual-fuel logic option, which the 1F89-0211 documents do not provide. If you end up wanting a schedule, the EMERSON Blue Series 2" 1F82-0261 runs the same 2/1 heat pump with 5-1-1 programming, and its sheet lists program memory during a power failure. Its load does not exceed 1.0 A per terminal and 1.5 A total, against 1.5 A and 2.5 A on the 1F89-0211.
What AirGreen does at installation
We wire the 1F89-0211 on batteries or hardwired at 20 to 30 VAC, each heat pump wire on its own terminal. Before we leave, we run the compressor, the backup stage and cooling one at a time to confirm that each stage responds. We offer a free in-home estimate.
Manufacturer document: 1F89-0211 installation instructions (37-6997). Sold and installed by AirGreen. We serve Montréal, Laval, Longueuil, the North Shore and the South Shore.
Key facts: EMERSON Blue Series 2" 1F89-0211
Four things to know, then its ID card in twelve answers. “—” means the manufacturer does not publish it.
Is the EMERSON Blue Series 2" 1F89-0211 compatible with your heating?
Two steps, thirty seconds. The verdict takes your system and your wiring into account.
Full compatibility table
The terminals behind the thermostat
Tap an element to see what it does. A working diagram, not a substitute for the manufacturer’s installation guide.
Try the EMERSON Blue Series 2" 1F89-0211 before you buy
Raise the setpoint, change the mode: see how it responds.
Winter, Rate Flex D and rebates: what this thermostat changes
With Hydro-Québec’s Rate Flex D, electricity costs less most of the winter and more during a few peak hours. Turning the setpoint down a few degrees during those hours is what counts.
The EMERSON Blue Series 2" 1F89-0211 or its closest sibling?
The most useful comparison: the model right next to it in our catalogue.
The right thermostat in three questions
If this model is not the right one for you, the page says so and shows you which one is.
Installed and set up by our technicians, in five steps
What we do at your place, in order. The on-site estimate is free.
- 01InspectionEquipment, stages to control and existing wiring.
- 02C wireCommon wire added if the model needs it and it is missing.
- 03MountingWall base, terminal wiring, cover plate if needed.
- 04SettingsEquipment type, stages, dual energy and accessories.
- 05Start-upConnection, app, schedule and tests with you.
EMERSON Blue Series 2" 1F89-0211 specifications
From the manufacturer’s sheet. Type a word: the list filters as you write.
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Frequently asked questions about the EMERSON Blue Series 2" 1F89-0211
Short answers, no detours.
What does the EMERSON Blue Series 2" 1F89-0211 work with?
According to the manufacturer’s sheet: single-stage heat pump with backup heat.
Does it need a C wire?
Per the spec sheet, it can run on batteries; a common wire is still recommended when available.
Can it control electric baseboards?
No. It is a low-voltage (24 V) thermostat. 120/240 V baseboards need a line-voltage electronic thermostat.
Can it be controlled remotely?
Not directly: it has no built-in Wi-Fi.
Does AirGreen install it?
Yes. We sell and install this product in Montréal, Laval, Longueuil, the South Shore and the North Shore. The on-site estimate is free.
No question matches. Call us at 514 316-2973.
Your thermostat, installed and set up by our technicians
We check your system and wiring, install the thermostat, connect it and program it with you. One visit, one installed price.