Honeywell TH115-A-240D-B/U Lin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$226.36
$151.72
Honeywell TH115-A-240D-B/U Line volt 7-day programmable thermostat for electric heat

Honeywell TH115-A-240D-B/U Line volt 7-day programmable thermostat for electric heat

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Model: TH115-A-240D-B/U
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$226.36
$151.72
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Line volt 7-day programmable thermostat for electric heat

  • Features

    • Early Start function ensures programmed temperature is reached by programmed time
    • ON/STANDBY switch enables thermsotat shutdown at the end of heating season for added security
    • On-screen heating power indicator gives at-a-glance verification of power being used
    • Advanced temperature control ensures total comfort by minimizing temperature swings
    • Battery-free backup means no re-programming your schedule after a power outage
    • Attractive design includes hidden programming buttons
    • Temporary bypass enables temperature override without changing programming

Manufacturer Resources

Product Specs

Department:
Safety
Ambient Temperature Range C :
0 C to 70 C
Ambient Temperature Range F :
32 F to 158 F
Application:
Electric Heating; Baseboard heater; Radiant ceiling; Convector or Fan-forced Heater
Approvals Canadian Standards Association:
Approved; Compliant to CAN/CSA-C828-06
Approvals Underwriters Laboratories Inc :
Approved
Differential Temperature C :
0.5 C
Differential Temperature F :
1 F
Dimensions In :
4.9 in. X 2.8 in. X 0.9 in.
Dimensions Mm :
124 mm X 70 mm X 23 mm
Electrical Connections:
6 in. (150 mm) tinned copper lead wires
Electrical Ratings:
Maximum Load: 15 A (resistive only), 3120 W @ 208 Vac, 3600 W @ 240 Vac
Frequency:
50 Hz; 60 Hz
Item Type:
Product
Mounting Method:
Vertical
Operating Temperature Range C :
0 C to 50 C
Operating Temperature Range F :
32 F to 120 F
Power Method:
Hardwired
Product Color:
White
Programmability:
7 Day program
Sensor Element:
Thermistor
Setting Temperature Range C :
5 C to 30 C
Setting Temperature Range F :
40 F to 86 F
Supply Voltage:
240 Vac 15A
Switch Classification:
Epoxy-soundproofed relay
Switching Action:
SPDT
Used With:
Aube RC840 Series Electromechanical Relays

Honeywell TH115-A-240D-B/U – Frequently Asked Questions

1) Will the Honeywell TH115-A-240D-B/U run a 240V electric baseboard heater, and how many watts can it handle?
Yes, it is a line voltage thermostat built for 240 Vac electric heat. Maximum load is 15 A resistive only, which works out to 3600 W at 240 Vac or 3120 W at 208 Vac. It suits baseboard heaters, radiant ceiling, convectors and fan-forced heaters. Resistive only matters here: it is not intended for inductive loads, so a heater with a motor beyond a standard fan-forced unit should be checked against that 15 A resistive rating.
2) Is this a line voltage thermostat or a low voltage one for a furnace?
Line voltage. The TH115-A-240D-B/U wires directly into a 240 Vac heating circuit and switches the heater load itself, so it is not a 24V thermostat and will not work on a furnace or heat pump control circuit. It is hardwired with 6 in. (150 mm) tinned copper lead wires rather than terminal screws, so you splice it into the supply and heater conductors in the box.
3) Can I control more than one baseboard heater or a bigger load than 15 amps with this thermostat?
For loads past its own 15 A limit, the TH115 is listed for use with Aube RC840 Series electromechanical relays. The thermostat then drives the relay and the relay carries the heater load, which is how you handle multiple heaters or a bank larger than 3600 W at 240 Vac off a single control point.
4) Will this thermostat fit the existing wall box and cover the old thermostat's footprint?
The TH115 body measures 4.9 in. X 2.8 in. X 0.9 in. (124 mm X 70 mm X 23 mm) and is specified for vertical mounting, so it sits tall on the wall rather than sideways. Measure the opening left by the outgoing unit against those numbers before you cut the old one out, particularly the 4.9 in. dimension.
5) What temperature range can tenants set on this Honeywell electric heat thermostat?
Setpoint range is 40 F to 86 F (5 C to 30 C). Control is by thermistor with a 1 F (0.5 C) differential, so room temperature holds close to setpoint instead of swinging the way a bimetallic line voltage stat does. That tight differential is the main comfort difference tenants notice in a baseboard-heated unit.
6) Do I have to reprogram the schedule after a power failure, and does it need batteries?
No batteries and no reprogramming. The TH115 uses battery-free backup, so the 7-day schedule survives an outage. That is the detail that matters for a property manager running these across a building, since there is no cell to replace on a maintenance round.
7) Is this thermostat approved for use in Canada?
Yes. The TH115-A-240D-B/U is CSA approved and compliant to CAN/CSA-C828-06, the standard for programmable electric heating thermostats, and it is also UL approved. It operates on either 50 Hz or 60 Hz supply.
8) Can I shut these thermostats down over the summer without killing the breaker?
There is an ON/STANDBY switch for exactly that, letting you take the thermostat out of service at the end of heating season. Combined with hidden programming buttons, it is a useful feature in rentals and common areas where you do not want the schedule tampered with.
9) Can this thermostat be installed in an unheated space like a garage or a mechanical room?
Operating range is 32 F to 120 F (0 C to 50 C), and the unit will tolerate ambient conditions from 32 F to 158 F (0 C to 70 C). Below freezing is outside both ranges, so an unheated space that drops below 32 F is not a location for it.
10) What color is the Honeywell TH115 and what switching does it use?
White, with an epoxy-soundproofed SPDT relay. The soundproofing is why it does not click audibly through the wall the way older line voltage stats do, which is the common complaint in bedrooms and hotel rooms.
How fast can I get the Honeywell TH115-A-240D-B/U delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Honeywell TH115-A-240D-B/U come with a warranty?
Absolutely. The Honeywell TH115-A-240D-B/U is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Honeywell TH115-A-240D-B/U?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Honeywell TH115-A-240D-B/U from ZenSupply?
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