Johnson Controls Tyco PowerG PG8HRDW8, Руководство по установке

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Table 9: 2-wire smoke detector initiation circuit
Item Specification
Maximum number of detectors per loop 18 without sounders
Maximum ripple 45 mV
Resting voltage and time 0.2 VDC/ 5 seconds
Loop resistance 24 Ω maximum
Minimum standby impedance 1250 Ω nominal
Maximum alarm impedance 707 Ω maximum
Alarm current 102 mA maximum
Wiring a 4-wire smoke, heat, or CO detector
The following table lists the maximum current rating at 12 VDC of the hardwired CO detectors that
are compatible with the PG9HRDW8 converter.
Table 10: CO detector ratings
Device Manufacturer UL file number Rating
CO-12/24 Potter E321434 40 mA
12-24SIR Quantum E186246 75 mA
Note: If you wire multiple CO detectors on the same loop, you must break the leads between
each CO detector. You must power the supervision relay from the last detector in the loop.
If you use a non-powered heat detector, such as a fixed temperature or rate of rise type, no
supervision relay is required and you should not wire the detector to AUX2 or PGM2.
To wire a 4-wire smoke, heat, or CO detector, see the following figures:
Note: Do not exceed a wire resistance of 100 Ω. For more information, see Table .
Figure 9: CO detector wiring
NC NO
- +
C NC NO C
- +
+
-
C
O
M
Z
AU
X
Figure 10: 4-wire smoke and heat detector
wiring
Callout Description
1 4-wire smoke, heat, or CO detector power terminals
2 4-wire smoke, heat, or CO detector alarm terminals
3 4-wire smoke, heat, or CO trouble terminals, if provided
19 PG8HRDW8 and PG9HRDW8 IQ Hardwire PowerG Wired to Wireless Converter Installation Manual