Chapter 2 – Installation
TestEquity 1007H Temperature Chamber
Page 2-5
Connection to the Power Source
2
CAUTION:
This chamber should be connected to the AC power source by a qualified
electrician who is familiar with industrial plant wiring.
The Disconnect Switch on the front panel removes primary power to the entire chamber. All
branch circuits on the load side of the Disconnect Switch are individually protected with Class
CC fuses. However, your local electrical code may require a separate disconnect switch within
sight of the chamber.
Input Wiring Preparation
1.
Turn the Disconnect Switch to the OFF position.
2.
Remove the lower door retaining screw located on the right side. Open the lower door.
3.
Remove the chamber’s right side panel.
4.
Ensure that the chamber is properly configured for Single Phase or Three Phase input as
described on the previous page.
5.
Mount the input wire through the hole on the rear of the chamber, using an appropriate
bushing. An additional 4-feet of wire will be needed need to reach to the terminals on the
electrical subpanel. The wires will need to pass through the Input Access Hole. This hole is
located in the corner of the partition which separates the compressor compartment from the
electrical compartment. Three tie points are provided on the side of the chamber to secure the
input wiring with tie-wraps.
Three Phase Input
1.
Locate the Disconnect Switch.
2.
Connect the “Hot” input wires to terminals L1, L2 and L3 on the Main Disconnect Switch.
3.
Connect the Ground wire (NOT A NEUTRAL) to the Ground terminal.
4.
Put the chamber side panel back on and close the lower door.
Single Phase Input
1.
Locate the Disconnect Switch.
2.
Connect the “Hot” input wires to terminals L1 and L2 on the Main Disconnect Switch.
3.
Connect the Ground wire (NOT A NEUTRAL) to the Ground terminal.
4.
Put the chamber side panel back on and close the lower door.
