Description
Product Summary
The Honeywell Residential HZ311K is a transformer from Honeywell Residential, described by the manufacturer as: single stage 1H-1C truezone system kit controls up to 3 zones includes HZ311 control panel C7735A discharge air temperature sensor & transformer not redlink enabled. It replaces EMM-3K.
A control transformer steps line voltage down to the low voltage, usually 24 volts, that runs the thermostat, controls and valves. Replace a transformer with no output voltage while it has correct input voltage, or one that is burnt or overheating. Find any short that blew the original first.
Before you order, match HZ311K to the part number on the part you are replacing or in your equipment's repair parts list, and confirm the voltage, size and connections match your equipment. If you are not sure which part your equipment needs, call us at 1.888.509.3391 with the model and serial number and we will confirm it for you.
Key Features
- Genuine Honeywell Residential part: Manufacturer part number HZ311K, factory new.
- Cross-reference: Replaces EMM-3K.
- Includes: HZ311 Control Panel C7735A Discharge Air Temperature Sensor & Transformer Not Redlink Enabled.
- Part type: Transformer.
Frequently Asked Questions
Is this a genuine Honeywell Residential part?
Yes. This is the Honeywell Residential HZ311K, a factory-new transformer from Honeywell Residential.
How do I make sure it fits my equipment?
Compare HZ311K with the part number printed on the part you are replacing or listed in your equipment's repair parts list, and confirm the voltage and connections match. If you are not sure, call us at 1.888.509.3391 with your model and serial number and we will confirm it.
What part numbers does the HZ311K replace?
The Honeywell Residential HZ311K replaces EMM-3K.
What size transformer do I need?
Match the primary and secondary voltages and choose a VA rating equal to or higher than the original.
Should a professional install this part?
Yes. Gas, electrical, hydronic and combustion components should be installed by a qualified technician who can test the system afterward and follow the codes that apply where you live.
