Chapter 2 – Installation
TestEquity 1016H-2 Temperature/Humidity Chamber
Page 2-3
Voltage and Phase Configuration
NOTE:
Refer to Figure 2-1 on the previous page for the location of the input voltage
configuration terminals on the electrical subpanel that are described below.
To access the electrical subpanel, turn the Disconnect Switch to the OFF position. Remove the
lower door retaining screw located on the right side. Open the lower door.
230 V / 60 Hz Input Configuration
Locate the Control Transformer TR1. Wire number TA must be connected to the 230 V terminal
4 on Control Transformer TR1.
208 V / 60 Hz Input Configuration
Locate the Control Transformer TR1. Wire number TA must be connected to the 208 V terminal
3 on Control Transformer TR1.
Single Phase Configuration
1.
Locate the Power Distribution Terminal Block. There must be a jumper between terminal
C and A (right side of terminal block). Wire D must connect to terminal B (left side of
terminal block).
2.
The input power wires will be connected to L1 and L2 on the top of the Disconnect
Switch. Connect earth ground to the ground lug.
Three Phase Configuration
1.
Locate the Power Distribution Terminal Block. Wire D must connect to Power
Distribution Block terminal A (left side of terminal block).
2.
The input power wires will be connected to L1, L2, and L3 on the top of the Disconnect
Switch. Connect earth ground to the ground lug.
Figure 2-2 – Power Distribution Block, Phase Configuration Terminals
A
B
C
Three Phase
Wire D to terminal A
A
C
B
Single Phase
Wire D to terminal B
