Honeywell Farenhyt Series User Manual

IFP-300 / IFP-300ECS Manual P/N LS10145-001SK-E:B 12/18/2017 80
Maximum loop length depends on the wire gauge. See “Maximum wiring distance for SD devices” on page 80 for SD.
Table 7.4 Maximum wiring distance for SD devices
7.6.2 Wire Sizing for 6815
The SLC requires use of a specific wire type, depending on mode of operation, to ensure proper circuit functioning. Wire size should be
no smaller than 18 AWG (.075 mm) and no longer that 12 AWG (3.25 mm) wire. The wire size depends on the length of the SLC circuit.
It is recommended that all wiring be twisted-pair to minimize the effects of electrical interference.
7.7 Wire Requirements for IDP or SK Modules
The SLC can be programmed to operate in IDP or SK mode. While shielded wire is not required, it is recommended that all SLC wiring
be twisted-pair to minimize the effects of electrical interference. Use Table 7.5 to determine the specific wiring requirements for the SLC
Figure 7.1 and Figure 7.2 show how wire length is determined for out & back tap and T-Tap.
The following figures show how length is determined for out and back tap and T-Tap style wiring.
Figure 7.1 Calculating wire run length for a simple out and back
Wire Gauge Max. Distance for SD
22 AWG 1500 feet
18 AWG 3900 feet
16 AWG 6200 feet
14 AWG 10,000 feet
Wire Requirements Distance in Feet (meters) Wire Type
RECOMMENDED: Twisted-unshielded
pair, 12 to 18 AWG (3.31mm
2
to 0.82
mm
2
). 50 ohms, maximum per length of
Style 6 & 7. 50 ohms per branch maximum
for Style 4 loop.
12,500 ft. (3,810 m)
9,500 ft. (2895.6 m)
6,000 ft. (1,828.8 m)
3,700 ft. (1,127.76 m)
12 AWG (3.31 mm
2
)
14 AWG (2.08 mm
2
)
16 AWG (1.31 mm
2
)
18 AWG (0.82 mm
2
)
Untwisted, unshielded wire, in conduit or
outside of conduit.
5,000 ft. (1,528 m)
3,700 ft. (,127.76 m)
12 to 16 AWG (3.31
2
mm to 1.31 mm
2
)
18 AWG (0.82 mm)
Twisted, shielded pair
Note:
• Shields must be isolated from ground
• Shields should be broken at each device
5,000 ft. (1524 m)
3,700 ft. (1,127.76 m)
12 to 16 AWG (3.31 mm
2
to 1.31 mm
2
)
18 AWG (0.82 mm
2
)
Note: Maximum total capacitance of all SLC wiring (both between conductors and from any conductor to
ground) should not exceed 0.5 micro farads.
Table 7.5 SLC Wiring Requirements for IDP or SK modules

Honeywell Farenhyt Series Specifications

General

Brand	Honeywell
Model	Farenhyt Series
Category	Control Panel
Language	English