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Maroon octal-base relay with eight flat pins and LED indicator

Macromatic

Macromatic LCP2C100 HVAC Control Relay 120V Dual Pump Up

SKU CH-CZ3Z-D3N66

Controls liquid level with dual-probe pump-up logic at 120 V AC and 10 A rating

  • Controls two pumps with one relay
  • 120 V AC input suits standard mains supply
  • SPDT contacts rated 10 A at 240 V AC
  • Adjustable sensitivity from 700 Ω to 100 kΩ
  • LED status indicator shows relay state

HVAC Level Control Relay

The Macromatic LCP2C100 is a level control relay designed for HVAC systems that require automated liquid-level management. It operates on a 120V AC supply and uses a dual-probe arrangement to detect conductive media. The unit mounts in an 8-pin octal socket and provides a visual LED status indicator for quick diagnostics.

Suits Single-Pump-Up Applications

This relay suits installers who need a pump-up function with adjustable sensitivity between 700 ohm and 100, 000 ohm. It is not for systems requiring pump-down control or configurations that demand more than two probes. Buyers needing a different contact form or a non-octal mounting style should look at alternative models.

Handles 10 A Resistive Loads

The SPDT output contacts are rated for 10 A at 240V AC and 7 A at 28V DC, giving comfortable headroom for typical fractional-horsepower pump motors. The relay runs out of capacity when the load exceeds these current limits or when the control voltage differs from the specified 120V AC input.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $75.99
Pricier than about 62% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameMACROMATIC

Questions about this item

What power supply must already be available for the 120V AC input?

A 120V AC source is required to power the relay coil and the probe circuit.

Can the 10 A @ 240V AC contacts switch the same loads as my existing 28V DC circuits?

The contacts are rated 10 A at 240V AC and 7 A at 28V DC, so the DC rating is lower than the AC rating.

How does the LED indicator confirm the relay is operating correctly?

The built-in LED lights when the output contacts are energised, showing the pump-up function is active.

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