Filtrine offers the best engineering features in the business. In addition, there are more than 60 options and accessories available for all Filtrine medical, industrial process or bakery chillers. You select the options to make the chiller the best fit for the site and the application. Please review the extensive list of options, accessories and cabinet designs shown below or download the Filtrine Chiller Options & Accessories sheet. Filtrine will build your chiller based on your requirements. Fill out a process chiller request a quote form or contact a sales representative for more information.

PS Eng Features

Filtrine’s chiller features include:

Energy Saving Design: Filtrine's chiller design features the storage-method of cooling. Each Filtrine chiller has a chiller barrel that consists of a stainless steel storage tank with an immersed stainless steel evaporator. The capacity of the storage tank and length of the evaporator are sized to meet the heat removal requirements of the application. This takes advantage of the fly-wheel effect of cooling where the energy is stored in the coolant to produce consistent, reliable outlet temperature. Unlike most process chillers, the Filtrine chiller’s refrigerant circuit only cycles on when the coolant temperature in the tank needs cooling. This saves energy over conventional cooling systems.

Complete Temperature Control: Temperature adjustable within a range of 40° to 90°F (5° to 32°C) and will hold temperature within ±1.5°F (.8°C) of setting. (±0.5°F optional). If the heat load from the application swings large amounts, the chiller will deliver the coolant at a consistent temperature. 

Welded Stainless Steel Cooling Tank: Recirculates clean coolant sealed from the atmosphere, eliminates bacterial build-up, evaporation and the need for feed tank. The tanks are designed with internal expansion space, so expansion tanks are not needed.

HFO Refrigerant: Eliminates use of ozone-depleting and high GWP (Global Warming Potential) refrigerant as per Montreal Protocol.

Condenser Options: Filtrine chillers are offered with the integral air-cooled, integral water cooled condensers or remote air-cooled condensers.

Coolant Loop Options: Filtrine chillers serve closed loop (PCP), open loop (POC) and single pass (PC) applications.

Filtrine’s chiller options include:

Sensor Controls

ADT: Ambient Driven ThermostatP

Senses the ambient air temperature and maintains the chilled water at a fixed differential (plus or minus) from that ambient.

CDT: Computer Driven ThermostatB

Solid state temperature controller with appropriate output to communicate with computers.

CTC: Close Temperature ControlB

Solid state temperature controller and hot gas bypass maintain liquid temperature at ±0.5°F (±0.3°C) of setting.

HGBP: Hot Gas Bypass

Allows compressor to run constantly without cycling. When thermostat is satisfied, liquid line solenoid closes causing the hot refrigerant gas to bypass through a regulating valve directly into the evaporator until the water temperature rises enough to reactivate the thermostat.

PLC: Programmable Logic ControllerB

Controls operation of refrigeration unit, circulation pump, fans and other accessories of Filtrine chillers. Compatible with most building monitoring systems. Available with optional touch screen display.

SST: Solid State ThermostatB 

Temperature controller available with a variety of outputs to operate customers’ recording device or other communication functions. Controllers can also feature programming functions such as PD, PID, ramp/soak and deviation alarms.

Temperature Range

L - Low TemperatureP

Chill water down to 34°F (1°C) or antifreeze liquids down to 0°F (-18°C).

ILH - In-Line Heater

Heat liquids to optimum temperature automatically. Specify heater KW and temperature range.

H/C - Heat Or CoolP

Switch instantly from hot to cold and back. Example: Heat up work piece for vacuum coating then quickly cool it down for handling. Example: Product testing with quick and extreme coolant temperature changes.

MHC - Mixed Hot & ColdP

Complete dial-a-temp control over a wide temperature range. Outlet temperature will follow the set point control up or down as it is changed. Example: Ramp heating and cooling of electronic components for precise computer-monitored testing.

BHC - Bath Coil  Heater/ChillerP

Extremely wide range heater/chiller. Ideal for cooling fluids at high temperatures. Example: Heat up a device to optimum process temperature, then cool it to maintain that temperature during the process.

Switches, Indicators and Alarms

DT - Dial ThermometerB

Makeup and/or discharge temperature.

DGT - Digital ThermometerB

Makeup and/or discharge temperature.

FCL - Filter Change LightB

Warning light activates when water filter element needs changing.

HT - High Temperature Interlock

Warning set off when chiller temperature exceeds set high temperature, signifying refrigeration failure.

PM - Phase MonitorB

Protection from under or over voltage, phase loss or reversal and short cycling automatic reset included.

LF - Low Flow InterlockB

Warning signal triggered upon low flow signifying pump failure.

LL - Low Level Interlock

Float switch in tank activates a warning light if coolant level drops below safe limit.

LP - Low Pressure InterlockB

Warning signal triggered upon low pressure; signifying pump failure.

LT  - Low Temperature Interlock

In-line sensor sets off warning when chiller temperature falls below set low temperature.

PG - Pressure GaugeB

Return and/or discharge water pressure.

FM - Flow MeterB

Indicates water flow in gpm or lpm.

OPG - Oil Pressure Gauge

Analog or digital on semi-hermetic compressors only.

HPG - Head Pressure Gauge

Analog or digital refrigerant gauge.

SPG - Suction Pressure Gauge

Analog or digital refrigerant gauge.

UVML - UV Sterilizer Monitor LightB

Light indicates in-line UV sterilizer requires maintenance.


OP/T - Optional Pump, Turbine

Turbine or gear pump to provide head pressures up to 200 psi with flow rates less than 20 gpm.

OP/C - Optional Pump, CentrifugalB

Larger than normal centrifugal pump to provide higher head pressure and flow rates than standard.

DP - Dual PumpsB

Provide complete backup. Available with automatic switch over in case of failure.


AR - Remote Air-Cooled CondenserB

Ready for remote installation outdoors or indoors.

ARC - Remote Air Cooled Condensing UnitB

Outdoor refrigeration system, indoor evaporator and pump only – saves indoor space, reduces noise, exhausts heat.

AB - BlowerB

Built into cabinet for ducting hot air out of building.

W - Water Cooled CondenserB

For hookup to city water, tower water or plant chilled water.

AS - Automatic Switchover

Auto switchover to city water in case of pump or compressor failure.

HA - Oversized CondenserB

For safe chiller operation in ambients over 100°F (38°C). Specify maximum ambient of 110°F (43°C) or 120°F (49°C).


110-120/1/60, 220-240/1/60, 220-240/1/50, 208-230/3/60, 200-240/3/50, 440-480/3/60, 380-420/3/50, 380/3/60, 575/60/3


RED: Standby  Refrigeration

For critical applications where downtime can be extremely expensive. Failsafe design with 50% or 100% backup refrigeration and circulating system packaged within a single housing.

RED2: Two Refrigeration UnitsB

One active and one standby

RED3: Three Refrigeration Units

Two active and one standby

DUC: Two Refrigeration Units

Each handle 50% of the total cooling capacity. Other capacity splits available.

Options listed above are available for both Medical and Process Liquid Chillers unless otherwise indicated. (P) is for process chillers only.

Popular bakery options indicated by (B). 



Filtrine’s chiller accessories include:

QCP and QCP ASX Models – Quick Connect Panel

(Designed to work with Filtrine medical equipment chillers – indoor installation only).

PS – Pure System

For deionized water or other liquids that cannot come into contact with copper or brass. Evaporator fabricated from type 304 stainless steel with polypropylene piping and fittings. Type 316 stainless steel also available for salt water or acids.

ILF - In-Line FilterB

Removes sediment from makeup water and/or from water in circulating loop. Filter elements available with rating of 1 to 75 microns.

ILD - In-Line Deionizer

Installed in-line; specify requirements.

ILS - In-Line SterilizerB

UV sterilizer installed in makeup line and/or recirculating line to kill bacteria and other waterborne microorganisms.

AF - Auto Fill

On closed-loop chillers, float switch senses liquid level in tank and activates solenoid valve on makeup line to keep tank full.

AAV - Auto Air Vent

Automatically vents air from system.

LCI - Liquid Coolant Interchanger

Shell-in-tube or plate-type heat exchanger to cool corrosive, viscous or high temperature liquids.

BD - Batch DrawP/B 

Stainless steel cooling tank automatically fills with water, which is constantly agitated and chilled to as cold as 34°F (1.1°C). When water is drawn off, a solenoid valve shuts off the makeup water preventing the mixing of warm and chilled water and insuring a uniform batch temperature from first drop to last.P/B

PRV - Pressure Relief Bypass
Release excess pressure from pump discharge back to return line.

OCO - Other Coolant Interchanger Option
Designed for cooling high temperature, dirty or oil based fluids. A double circuit configuration sends water (or glycol) to be chilled using Filtrine‘s storage tank. The cooled water  is then circulated through a water-to-liquid heat exchanger permitting a closer temperature differential to avoid fouling. The heat exchanger is available as a cleanable type that won‘t contaminate the refrigeration system.

Options listed above are available for both Medical and Process Liquid Chillers unless otherwise indicated with (P). (P) is for process chillers only.

Popular bakery options indicated by (B). 

Filtrine's chiller cabinet design choices include:

SSC - Stainless Steel CabinetB

Cabinet exterior constructed of stainless steel.

RC - Rubber CastersB

Rubber casters for complete mobility.

SSD - Space Saving Design

Smaller footprint available on many designs (consult factory) – not available on weather-resistant models.

ADJ - Adjustable LegsB

Stainless steel legs adjustable from 6" to 8".

LH - Lifting Hooks

For lifting with a crane. Ideal for loading chiller onto ship or high platform.

LP - Low Profile

Reduced height available on many models (consult factory).

Vibration Pads

Neoprene pads in rugged, cast iron casings mounted under channel skids.

Special Paints and Custom  Colors

Available to match any space.

Options listed above are available for both Medical and Process Liquid Chillers unless otherwise indicated. (P) is for process chillers only.

Popular bakery options indicated by (B).

Filtrine's chiller options for special conditions:

N12 - NEMA 12 Enclosure

Oil tight NEMA 12 external electrical enclosures.

XP - Explosion Proof

All motors, wiring and controls rated for Class 1, Group D, Division 1, explosive environment. Groups B and C available on some models.

WP - Weather-Resistant

For outdoor installation in most climates. Standard weather-resistant is sufficient for ambients between -20°F (-29°C) and 100°F (38°C). For higher ambients see the HA OPTION. For lower ambients, consult factory.

The bakery chiller can be designed to be washed down with water..

CF - Copper Fin Condenser

Condensers supplied with copper fins instead of aluminum to prevent corrosion from salt spray or chemicals in the air.

DPD - Dust Proof Design

Air filter on intake to condenser.

SP - Sound Proof Design

Acoustical insulation on all panels to reduce noise.

OSP - Pre-Approved For OSHPD Special Seismic Certification

By the State of California Office of Statewide
Health Planning & Development Facilities Development Division for specific closed loop chiller models

EC - Epoxy Coating

Helps to protect the condenser in a marine/ salt atmosphere.