Nordyne 669422R Charge Compensator 340155-7024 The Carrier HH18HV120 Limit Switch

The Carrier HH18HV120 Limit Switch is a critical safety component designed for precise thermal regulation within HVAC systems

Remove the Schrader cores before applying heat and wrap the valve body with a wet rag

which simplifies piping and reduces leak points

meaning it will re-close once the temperature drops to 135°F

Reversing configurations require a second contactor and a dedicated mechanical/electrical interlock kit

Nordyne 669422R Charge Compensator 340155-7024 The Carrier HH18HV120 Limit SwitchThe Nordyne 669422R Charge Compensator is a vital component for technicians managing heat pump charge balancing in split system configurations. Engineered to handle refrigerant volume shifts between heating and cooling cycles, this OEM Nordyne part acts as a storage reservoir for excess liquid. It prevents high head pressure spikes during the heating mode, which is a frequent issue when high efficiency outdoor condensers are paired with smaller indoor