Bosch D7212G Installation Guide download pdf (Page 26)

D7212G Operation and Installation Guide

D7212G

4.2.2 Installing the Battery

Place the battery upright in the base of the enclosure. Locate the red and black leads supplied in the literature pack. Connect

the black battery lead to Terminal 4, and then to the negative (-) side of the battery. Connect the red battery lead to Terminal

5, and then to the positive (+) side of the battery.

WARNING

High Current Arcs Possible : The positive (red) battery lead and Terminal 5 can create high current arcs if shorted

to other terminals or the enclosure. Use caution when working with the positive lead and Terminal 5. Always

disconnect the positive (red) lead from the battery before removing it from Terminal 5.

CAUTION

The Battery Terminals and Wires are NOT Power Limited. A ¼ in. (6.4 mm) spacing must be maintained between

the battery terminals, battery wiring and all other wiring. Battery wiring may not share the same conduit, conduit

fittings or conduit knock-outs with other wiring. See Figure 5.

¼ in. (6.4 mm) minimum

spacing between battery wires

and other wires in any direction

Option

Wires

Output or

Zone Wires

Only required if

external batteries

are used

EARTH GROUND

COMMON

BATTERY NEGATI

Maximum Charging

Current 1.4 Amps.

BATTERY POSITIVE ONLY

RELAY A

RELAY B

RELAY C

+ AUX

PROGRAMMABLE

ALARM OUTPUTS

Ter minals

Requires Optional

D136 Relay

In ALT ALARM

& SW AUX

GROUND FAULT DETECT

Enabled

Disabled

PHONE

LED

RED

ON WHEN

COMMUNICATING

OFF WHEN IDLE

LOOP START

GND START

GROUND START

1211 13

Point 1

Point 2

GROUND START

Requires

Relay # D136 in

Ground

Start Socket

Battery Wires

To Batteries

To ensure proper

spacing secure

wires using

Tie-Wraps or

similar devices.

Battery terminals and

wires are not power

limited

Standby Battery

Figure 5: Non Power Limited Wiring

4.2.3 Replacing the Battery

Bosch Security Systems recommends battery replacement every 3 to 5 years under normal use. Exceeding the maximum

output ratings, or installing the transformer in an outlet that is routinely switched off, causes heavy discharges. Routine

heavy discharges can lead to premature battery failure. Record the date of installation directly on the battery.

D8132 boosts battery backup: Adding a D8132 Battery Charger Module supports additional batteries of up to 27 Ah capacity

if required.

The D8132 Battery Charger Module can be used to connect two additional batteries for a total of four. The panel plus any

connected D8132 Modules and AUX power supplies must be on the same AC circuit so they will discharge evenly if AC power

fails. The number of D8132 Modules is determined by the number of available outlets on the same circuit. See Section 4.1

Current Rating Chart for Standby Battery Calculations in the D7212G Approved Applications Compliance Guide (P/N:

4998138560) for battery standby time calculations.

Note: In applications where the supervision of two batteries is required by the AHJ, a D113 Battery Supervision Module

must be used.

Power Supply

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Bosch D7212G Installation Guide Page 26

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