Combined Cooling Unit

Product overview

The Combined Cooling Unit puts the radiator, pump, fan, full shroud, built-in overflow tank, and fan controller in one welded aluminum assembly. The pump mounts straight to the core and runs whenever the ignition is on. Connect power and ground, then set the fan-on point on the controller dial.

Formosa EV Combined Cooling Unit construction detail

Integrated components

Radiator, pump, fan, full shroud, built-in overflow tank, and fan controller with a 30 A relay.

Power and ground

One Deutsch DTP connector; no separate fan controller or relay to source. The pump runs whenever the ignition is on.

Thermostatic fan control

A probe in the radiator reads coolant temperature. Set the fan-on point on the controller dial from 90–⁠210 °F (32–⁠99 °C).

Connections and applications

−16 AN inlet and outlet; −16 AN ORB female pump ports. For liquid-cooled EV conversions and ICE cars; no Formosa EV Vehicle Control Unit needed.

Relocatable controller

Move the controller off the assembly when the vehicle needs more vertical clearance. Coolant manifolds are available as a separate option.

Technical specifications

Pump flow and burst pressure are pump component ratings. They are not assembly heat-rejection performance or radiator-cap pressure.

Pump flow rating

162 L/⁠min (42.8 US gal/⁠min) at 13 V DC

Pump operating voltage

3–⁠15 V DC

Pump current

10 A maximum at 13 V

Pump operating temperature

−40 to +120 °C (−40 to +248 °F)

Pump type

Clockwise centrifugal, volute chamber

Pump seal

Ceramic face

Pump burst pressure

500 kPa (72.5 psi)

Pump housing

Powder-coated aluminum

Fan

12 V, 9 in S-blade pull; 4 A; 570 CFM at 0 Pa

Fan control

Adjustable thermostatic, 90–⁠210 °F (32–⁠99 °C)

Relay rating

30 A, 12 V

Shroud

Full coverage over the core

Core

Custom aluminum radiator with header plates

Overflow tank

Built in

Connections

−16 AN inlet and outlet; −16 AN ORB female pump ports

Electrical

Deutsch DTP; power and ground; 14 A maximum at 12 V

Complete assembly

7.5 kg (16.5 lb) dry; 400 × 362 × 146 mm

Radiator cap pressure

69 kPa (10 psi)

Fan speed

2,950 rpm

Coolant manifolds

Separate, optional part

Installation and configuration

1. Plumb the −16 AN inlet and outlet into your coolant loop.

2. Plug in power and ground through the Deutsch DTP connector.

3. Set the fan-on point on the controller dial, from 90–⁠210 °F.

Discuss component selection and vehicle fit