Ziton ZP3, Руководство по установке и обслуживанию

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Chapter 6: System commissioning
ZP3 Fire Control Panel Installation, Commissioning, and Maintenance Manual 109
replace the panel main board. For ZX, ZR or EX devices, check for the
appropriate levels as shown in Table 37 below.
b) Put one device on each loop into alarm (activate call points, or use smoke
or test smoke on a sensor). Make sure the panel reports an alarm and that
the zone is reported on the LCD display (and the correct zone and status
LEDs turn on).
c) Create a fault on one device on each loop (disconnect a call point, or
unplug a sensor base). Make sure the panel reports a fault and that the zone
is reported on the LCD display (and the correct status LED turns on).
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ZP (standard analogue) 2 198 227
ZR (wireless) 4 135 163
ZX (paradigm) 4 135 163
EX (intrinsically safe) 6 68 100
1. Disconnect the loops from the panel.
2. Bridge out any line isolators (if fitted).
3. Measure the resistance of the complete loop (the combined resistance of both
the positive and negative legs), using a multimeter, as follows:
If the system is wired as a Class A return loop, measuring the resistance is a
simple matter. At the panel, measure the resistance of the positive leg from
[+out] to [+in], and record. Multiply by two to get resistance of the total cable
and check that they are within the required parameters as described under
“Z-loop wiring parameters” below.
If the system is wired as a Class B return loop, measure as follows. If the loop
has T-taps, identify the longest leg (measured from the panel to the last
device). At the last device connect the positive leg to the negative leg. At the
panel, measure the resistance from the positive leg [+out] to the negative leg
[
í
out], and record.
These must be as specified in Appendix A “ZP wiring guide” on page 117.
As a guideline only: