Brand: Chiltrix
Product Code: V18b
Availability: In Stock
$528.75 $705.00

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Chiltrix V18b Variable Capacity In-Line Electric Backup Heater For Heat Pump Chillers (V18b, Unico)

Chiltrix V18b Variable Capacity In-Line Electric Backup Heater For Heat Pump Chillers

Description:

  • A patent-pending backup heat technology for air to water heat pumps, the V18 communicates with the Chiltrix CX34 to target a precise BTU shortfall.
  • The V18 output is modulated in real time from 0-18,760 BTU (0- 5.5 kW) in .5% increments to avoid overshoot and maximize the percentage of total heat provided by the higher COP heating source (the compressor).
  • Integrated and automatic, the V18 provides the industry-leading backup heating solution for air-to-water (hydronic) heat pump systems.

General Features:

  • Designed for use with Chiltrix CX-Series Air To Water Heat Pumps
  • Up to three V18-Bs may be used per Chiltrix CX34
  • All-Stainless Steel w/ Replaceable Element
  • Install in upright position only
  • Each V18-B requires a 30a GFCI 220v circuit
  • Provided as a kit, requires assembly and installation by a licensed electrician

  • Thermal Over-Limit switch is rated at 40A and is UL Listed.
  • The Relay is a Solid State (SSR) type, rated at 40A, and is also UL Listed
  • The Element is made of Incoloy material and has a power rating of 5500W at 240V with a current of 23A, and it is UL Listed
  • The LV Controller uses an AVR 16 MHz Microcontroller
  • MODBUS functionality can be used in either Slave or Master mode
  • The Internal Volume is 0.19 Gallons

Pressure Drop:

@ 7 GPM = 0.000427775 ft.

@ 14 GPM= 0.001438843 ft.


The Unico System uses less than one-third of the space in the built environment than a traditional system. It can deliver up to 9 tons of air conditioning in the same space as a 3-ton traditional unit.

Technical Specifications
Weight 7.3 lbs.
Height 18.8"
Width 6.5"
Power Supply 9V, UL Listed
Brand Chiltrix