UHC Series Heater Chiller Manual & Setup Guide

Download the Full PDF Manual

Download the official user manual for detailed specs, wiring info, maintenance, and safety notices.

Overview & Models

The UHC Series is a high-performance, closed-loop heater chiller system designed for precise temperature control from –40°C to 200°C. It’s ideal for:

Jacketed reactors
Rotary evaporators
Vacuum systems
Analytical instruments

Covered Models:

UHC-10/40
UHC-20/40
UHC-50/40

What’s in the Box

UHC Series Heater Chiller
(2x) ¾" FNPT insulated bellow hoses (6 ft)
¾" FNPT brass valve
¾" MNPT x ¾" MNPT hex union
PTFE thread tape
Red fiber gaskets

Installation & Assembly Steps

Position unit within 6 ft of your system, with 12–16" ventilation space.
Apply PTFE tape to threaded fittings (4 wraps minimum).
Connect:
- Outlet port → Ball valve → Hex union → Hose → Bottom port of vessel
- Vessel top port → Hose → Inlet port of chiller
Use red fiber gaskets at hose connections.
Plug into a dedicated circuit using the correct plug:
- UHC-10/40: NEMA 6-20P
- UHC-20/40: NEMA L6-30P
- UHC-50/40: Hardwired to a 60A panel

Approved Fluids

Use one of the following only:

Temperature Range	Recommended Fluid
–40°C to 110°C	60:40 Propylene Glycol : Distilled Water
–40°C to 200°C	High-Performance Silicone Oil

Do NOT use: Tap water or automotive antifreeze (causes corrosion).

Priming the Chiller

Always prime before use or after draining.

Power on the unit.
Open the ball valve.
Turn on the pump.
Let it run for 30 minutes to clear air.
Shut off pump, close valve.

Control Panel Operation

Press Set to enter temp mode.
Use arrows to set your temp, press Set again to save.
Press Loop, then Cooling and Heating to start.
Both heating and cooling must be active for accurate temperature control.

Running the Unit

Power on the unit.
Open the ball valve.
Run the pump.
Set the target temperature.
Enable both cooling and heating.
Monitor tank level — do not drop below ¼ full.
When finished, shut off pump and close valve.

Leaving the valve open during shutdown can cause tank overflow.

Maintenance

Daily: Monitor fluid level and visible leaks
Monthly:
- Inspect wiring
- Clean condenser and cabinet
- Check copper lines for damage
Quarterly: Clean condenser fins (more often in dusty environments)

Use glycol test strips if not using silicone oil.

Common Troubleshooting

Problem	Solution
No power	Check breakers, connections, plug screws
No heating	Check heating relay, safety dial
No cooling	Clean fan, check compressor
Boiling/Smoking	Set temp too high; switch to silicone oil
Incorrect temp	Reseat or replace temperature probe

Specs Overview

Model	Power	Temp Range	Flow Rate	Reservoir
UHC-10/40	5 kW	–40°C to 200°C	35 L/min	6 L
UHC-20/40	10 kW	–40°C to 200°C	35 L/min	12 L
UHC-50/40	10 kW	–40°C to 200°C	35 L/min	12 L