Chapter 2 – Installation
Page 2-2
TestEquity 3007C Temperature Chamber
Condensate Drain
The chamber has a condensate drain connection on the rear of the chamber. This provides a way
to remove condensate that may accumulate in the chamber during low-to-high temperature
cycling or when the refrigeration system runs to maintain moderate temperatures. Any time the
ambient air is subjected to temperatures below the dew point, moisture will condense out of the
air. The effect is ice or frost during low temperature operation. When the chamber is heated
above 0°C, the ice or frost will turn into water. The fitting accommodates a ½-inch male pipe
thread. The chamber drain water is not under pressure, and is fed by gravity. Therefore, it must
empty into an open drain. Alternatively, the chamber drain can empty into a condensate pump.
You can purchase a condensate pump from suppliers such as Grainger (www.grainger.com).
Under most circumstances, you will not see any water coming out of the drain.
Input Power Configuration
This chamber can be easily configured for operation from a 208 V / 60 Hz or 230 V (240 V) /
60 Hz, 3 Phase nominal input. Other input voltages and 50 Hz operation are available as special
options, and are not covered in these instructions.
Your chamber was configured prior to shipment for the particular voltage that was specified at
time of order. These instructions should be used to verify the input voltage configuration prior to
installation, or to change the input voltage from one configuration to another.
!
CAUTION:
This chamber must be properly configured for either 208 V or 230 V (240 V)
nominal input. 208 V and 230 V (240 V) are NOT the same. Do NOT guess!
Do NOT assume you have “220 V”. You must verify the exact type of
electrical service you have. If there is any doubt, you must consult with a
qualified electrician who is familiar with industrial plant wiring. In addition,
the input line voltage should be measured while the chamber is operating in a
continuous HEAT mode to ensure that the expected nominal voltage of either
208 V –5/+10% or 230 V
±
10% is present.
Control
Transformer
TR1
1 2 3 4
208 V - Wire TA to 3
230 V - Wire TA to 4
Figure 2-1 – Location of Input Configuration Terminals on the Electrical Sub Panel
