Bosch Appliances D7412GV3, D9412GV3 4.4Installing the Control Panel, 4.5Connecting Earth Ground

Models: D9412GV3 D7412GV3

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Page 15
Image 15
Figure 2: Enclosure Mounting

D9412GV3/D7412GV3 Operation and Installation Guide

4.0

Installation

 

 

 

Figure 2: Enclosure Mounting

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1 -

Point chart label

6-

Enclosure mounting holes (5)

2 - Mounting skirt hooks (2)

7 -

Mounting skirt hook holes (2)

3 - Module mounting holes (12)

8 -

Back of D9412GV3/D7412GV3 Control Panel

4 - Tamper switch mounting holes (5)

9 -

Lock down tab

5 -

Skirt mounting hole (1)

 

 

4.4Installing the Control Panel

1.Place the control panel over the inside back of the enclosure, aligning the large rectangular openings of the mounting skirt with the mounting hooks of the enclosure. Slide the control panel down so that it hangs on the hooks. Refer to Figure 2, Item 2 on page 15.

2.Remove the tape from the #6 x 1/4-in. screw in the mounting tab on the control panel. The screw passes through the mounting tab and into the skirt mounting hole in the enclosure. Tighten the screw to secure the control panel in the enclosure.

3.Connect earth ground to the control panel before making any other connections. Refer to Section 4.5 Connecting Earth Ground.

4.5Connecting Earth Ground

4.5.1Terminal 10

To help prevent damage from electrostatic charges or other transient electrical surges, connect the system to earth ground at Terminal 10 before making other connections. Recommended earth ground references are a grounding rod or a cold water pipe.

Caution: Do not use telephone or electrical ground for the earth ground connection. Use

1.8mm (14 AWG) to 1.5 mm (16 AWG) wire when making the connection.

Do not connect other control panel terminals to earth ground.

4.5.2Ground Fault Detect Enable

To meet UL 864 requirements, enable

Ground Fault Detect.

A ground fault is a circuit impedance to earth ground. The control panel has a ground fault detection circuit that, when enabled, detects ground faults on Terminals 1 to 9 and 11 to 32. The control panel also detects and annunciates ground faults on any device connected to it.

Bosch Security Systems, Inc. 10/10 F01U143070-03

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Image 15
Bosch Appliances D7412GV3 4.4Installing the Control Panel, 4.5Connecting Earth Ground, Enclosure Mounting, 4.5.1Terminal