Surge Protector for HVAC Equipment – 20 kA
A surge protector mounted near the unit to shield your heat pump’s electronics from voltage spikes.
AirGreen codeAG-EL-005
514 316-2973 · sales@airgreen.ca
Quick facts
This 20 kA surge protector for HVAC equipment is installed on the electrical circuit of a heat pump or air conditioner, most often at the outdoor disconnect, right next to the unit. It limits voltage spikes coming in through the power supply before they reach the unit's circuit board.
Why protect a heat pump against surges
Variable-speed (inverter) heat pumps are run by circuit boards. A storm, a power outage or a switching operation on the grid can send a voltage spike that damages this board or the compressor module. Replacing a board puts the unit out of service, sometimes in the middle of winter. A surge protector installed at the unit reduces this risk, in addition to whole-house protection at the electrical panel.
Where and how it is installed
- On the unit's circuit, usually at the outdoor disconnect.
- Connected by qualified personnel, in accordance with the Québec Electrical Code.
- Surge protector voltage chosen to match the unit's voltage.
What it does not do
A surge protector limits transient overvoltages; it does not protect against a direct lightning strike or against poor grounding. Before installation, we check the voltage, the circuit and the model of your unit.
Installed by AirGreen in Greater Montréal
We can add it when installing your heat pump or during a service visit in Montréal, Laval, Longueuil, on the South Shore and on the North Shore. RBQ licence 5645-9605-01. For availability or a quote, call us at 514 316-2973 or email sales@airgreen.ca with the brand and model of your unit.
Protecting a heat pump’s electronics
Variable-speed heat pumps rely on control boards that are sensitive to voltage spikes.
- Outdoor units of wall-mount, central and multi-zone heat pumps
- Central air conditioners
- After replacing a control board already damaged by a surge
- Areas with frequent outages and storms
Specifications
From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.
What to know before installing
- Wiring it is electrical work: it must be done by qualified personnel, to the Electrical Code.
- Check that the protector’s voltage matches the equipment.
- A surge protector limits surges; it does not protect against a direct lightning strike.
- Send us your equipment model: we confirm the right protection before installing.
You may also need
Outdoor Disconnect Switch for Heat Pump
RectorSeal RSH-50 Surge Protective Device
Copper Electrical Wire
Breaker for Residential Electrical Panel
14/4 Communication Cable for Heat PumpsElectricalSee all
Frequently asked questions
What does a surge protector do on a heat pump?
It limits the voltage spikes caused by storms, outages and utility switching, which can damage the control board and the variable-speed compressor.
Where is it installed?
On the unit’s circuit, usually at the outdoor disconnect next to the unit. The wiring is done by qualified personnel.
Is my unit compatible?
Send us your unit’s brand, model and voltage. We confirm the right surge protector before installing it.
Can you install it?
Yes. We can add it when we install your heat pump or during a service visit, everywhere in Greater Montréal.
Protect your heat pump from power surges
Tell us the size and the quantity: we confirm availability and send you a quote. Or let our technicians install it for you.
Specifications from the manufacturer’s documentation, checked on October 7, 2026.