Brookfield Cooler, TC-351 - Manual (Page 4)

5
2.2 Power
Plug the unit into a properly grounded outlet with the same voltage and frequency indicated on the
identification label (rear of unit). Avoid voltage drops by using properly grounded power outlets wired
with 14 gauge or larger diameter wire and if possible, be close to the power distribution panel. The use
of extension cords is not recommended, this will avoid low line voltage problems.
2.3 Safety Overload Warning
The compressor in these units is equipped with an internal safety overload switch. If the unit is turned
off, wait 10 minutes before restarting, allowing internal pressure and temperature to stabilize. If the unit
is turned on before stabilization, the compressor may not operate. If this happens, turn the unit off
again and wait 10 minutes before restarting.
2.4 Choice of Fluids
To select a fluid for low temperature use, the viscosity and freezing point must be considered.
Common fluids used are: a 50/50 mixture of methanol and water, or a 50/50 mixture of ethylene or
propylene glycol and water. The chart below will help in selecting a fluid for your application.
You are responsible for proper selection and use of the fluids.
Extreme range operation should be avoided.
FLUID DESCRIPTION SPECIFIC HEAT NORMAL EXTREME
@ 2 5 ° C RANGE RANGE
Water 1.00 10°C — 90°C 2°C — 100°C
Ethylene Glycol 30% / Water 70% .90 0°C — 95°C -15°C — 107°C
Ethylene Glycol 50% / Water 50% .82 -20°C — 100°C -30°C — 100°C
Ethylene Glycol 100% .62 50°C — 125°C 0°C — 125°C*
Dynalene-HC 50™ .76 -50°C — 60°C -62°C — 60°C
DC510 50 cs Silicone Oil .39 50°C — 150°C 5°C — 270°C*
DC550 125 cs Silicone Oil .42 100°C — 200°C 80°C — 315°C*
*WARNING - Fluid’s flashpoint temperature.
DC fluids are manufactured by Dow Corning
. Dynalene HC is a registered TM of Advanced Fluid Technologies, Inc.
DO NOT use the following fluids:
1. Automotive antifreeze with additives*
2. Hard tap water*
3. Deionized water with a specific resistance > 1 meg ohm
4. Any flammable fluids
5. Concentrations of acid or bases
6. Solutions with halides: chlorides, fluorides, bromides, iodides or sulfur
7. Bleach (Sodium Hypochlorite)
8. Solutions with chromates or chromium salts
* At temperatures above 40°C, additives or mineral deposits can adhere to the heater. If allowed to build up, the heater
may overheat and fail. Higher temperatures and higher concentrations of additives will cause a faster deposit build up.
If buildup occurs see Section 5.1 Maintenance - Heater.
WARNING: Do not use a flammable liquid as a fire hazard may result.