Installation guide

8. Verify that the grounding impedance is correct by using an ECOS 1020, 1023,

B7106, C7106, or other appropriately-approved ground impedance tester.

Note: Do not use the 120-volt convenience outlets inside the system to power the

tester.

Locating the 7133 Model T40

1. Ensure that the place where you are going to install the 7133 meets one of the

following conditions:

v The necessary service clearances (see Figure 1) are provided around the 7133.

v The 7133 can easily be moved into a position that provides the necessary service

clearances (see Figure 1).

The recommended operating temperature is 22°C (72°F) or lower. At lower

temperatures, the risk of failure in the unit is reduced. If the operating temperature

is above 22°C (72°F) for long periods of time, the unit is exposed to a greater risk

of failure from external causes.

1 meter

(3 feet)

Figure 1. Service Clearances

4 7133 Model T40 Installation Guide