Bryant 580F Install Flue Hood, VI. Install GAS Piping, VII. Make Electrical Connections

V. STEP 5 — INSTALL FLUE HOOD

Flue hood is shipped screwed to the burner compartment access panel. Remove from shipping location and, using screws provided, install flue hood and screen in location shown in Fig. 7.

VI. STEP 6 — INSTALL GAS PIPING

Unit is equipped for use with type of gas shown on name- plate. Refer to local building codes, or in the absence of local codes, to ANSI Z223.1-latest year and addendum Z223.1A- latest year entitled National Fuel Gas Code. In Canada, installation must be in accordance with the CAN1.B149.1 and CAN1.B149.2 installation codes for gas burning appli- ances when installing gas piping.

For natural gas applications, gas pressure at unit gas con- nection must not be less than 4.0 in. wg (5.0 in. wg in high heat units) or greater than 13.0 in. wg while unit is operat- ing. For liquid propane applications, the pressure must not be less than 5.0 in. wg or greater than 13.0 in. wg at the unit connection.

Size gas supply piping for 0.5 in. wg maximum pressure drop. Do not use supply pipe smaller than unit gas connection.

CAUTION: When installing gas piping to gas valve inlet, use properly sized back-up wrench on inlet flange flats to prevent valve damage.

Support gas piping as shown in the table in Fig. 8. For exam- ple, a 3/4-in. gas pipe must have one field-fabricated support beam every 8 ft.

See Fig. 8 for typical pipe guide and locations of external manual gas shutoff valve.

NOTE: If field-installed thru-the-bottom connections are used, refer to the accessory installation instructions for power wiring and gas connections. Refer to Fig. 1A and 1B for drilling holes in basepan.

VII. STEP 7 — MAKE ELECTRICAL CONNECTIONS

WARNING: Unit cabinet must have an uninter- rupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code), ANSI/NFPA (National Fire Protection Associa- tion), latest edition, and local electrical codes. Do not use gas piping as an electrical ground. Failure to follow this warning could result in the installer being liable for personal injury of others.

A. Field Power Supply

All units except 208/230-v units are factory wired for the voltage shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power supply, the transformer must be rewired by moving the black wire from the 230-v 1/4-in. male spade terminal on the transformer and connecting it to the 208-v 1/4-in. male spade terminal from the transformer.

Refer to unit label diagram for additional information. Pig- tails are provided for field service.

When installing units, provide a disconnect per NEC. Use copper conductors only when splice connectors are used.

All field wiring must comply with NEC and local require- ments. In Canada, electrical connections must be in accor- dance with CSA (Canadian Standards Association) C22.1 Canadian Electrical Code Part One.

Fig. 7 — Flue Hood Details

SPACING OF SUPPORTS

LEGEND
	STEEL PIPE	X
NFGC — National Fuel
	NOMINAL	DISTANCE
Gas Code	DIAMETER (in.)	(feet)
*Field supplied.
	1/	6
	2
NOTE: Follow all local codes.	3/4 or 1	8
	11/4 or larger	10

Fig. 8 — Gas Piping Guide (With Accessory

Thru-the-Curb Service Connections)

Install conduit through side panel openings indicated in Fig. 1A and 1B. Route power lines through connector to ter- minal connections as shown in Fig. 9.

On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in Tables 2A and 2B, Note 2 to determine the percent- age of voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable Bryant warranty.

NOTE: If field-installed thru-the-bottom connections are used, refer to the accessory installation instructions for power wiring and gas connections. Refer to Fig. 1A and 1B for drilling holes in basepan.

B. Field Control Wiring

Install a Bryant-approved accessory thermostat assembly according to installation instructions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense average temperature in accor- dance with thermostat installation instructions.

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft, use no. 16 AWG insulated wire (35 C minimum). For over 75 ft, use no. 14 AWG insulated wire (35 C minimum). All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat.

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