Bryant 581Jx14 series, Installation Instructions Manual

Page: 14 / 44

14
Factory--Option Thru--Base Connections
(Gas Connection) —
This service connection kit consists of a
3
/
4
--in NPT gas adapter
fitting (stainless steel), a
1
/
2
--in electrical bulkhead connector
and a 1
1
/
2
--in electrical bulkhead connector, connected to an
“L” bracket covering the embossed (raised) section of the unit
basepan in the condenser section. See Fig. 18.
1 1 /
2
” ELECTRICAL
BULKHEAD
CONNECTOR
1 /
2
” ELECTRICAL
BULKHEAD
CONNECTOR
3 /
4
” NPT GAS
ADAPTER
FITTING
C10905
Fig. 18 -- Thru--the--Base Option, Shipping Position
1. Remove the “L” bracket assembly from the unit (see
Fig. 18).
2. Cut and discard the wire tie on the gas fitting. Hand
tighten the fitting if it has loosened in transit.
3. Remove connector plate assembly from the “L”
bracket and discard the “L” bracket, but retain the
washer head screws and the gasket (located between
the “L” bracket and the connector plate assembly
NOTE
: Take care not to damage the gasket, as it is
reused in the following step.
4. Place the gasket over the embossed area in the
basepan, aligning the holes in the gasket to the holes
in the basepan. See Fig. 19.
5. Install the connector plate assembly to the basepan
using 8 of the washer head screws.
NOTE : If gas and/or electrical connections are not going to
occur at this time, tape or otherwise cover the fittings so that
moisture does not get into the building or conduit in the interim.
The thru--base gas connector has male and female threads.
The male threads protrude above the basepan of the unit;
the female threads protrude below the basepan.
Check tightness of connector lock nuts before connecting
gas piping.
Install a
3
/
4
--in NPT street elbow on the thru--base gas
fitting. Attach a
3
/
4
--in pipe nipple with minimum length
of 16--in (406 mm) (field--supplied) to the street elbow
and extend it through the access panel at the gas support
bracket. (See Fig. 20.)
GASKET
CONNECTOR
PLATE
ASSEMBLY
C10906
Fig. 19 -- Completing Installation of Thru--the--Base
Option
3 /
4
-in NPT
STREET
ELBOW
THRU-BASE
GAS FITTING
GAS
SUPPORT
BRACKET
C10806
Fig. 20 -- Gas Line Piping
Other hardware required to complete the installation of
the gas supply line will include a manual shutoff valve, a
sediment trap (drip leg) and a ground--joint union. A
pressure regulator valve may also be required (to convert
gas pressure from pounds to inches of pressure). The
manual shutoff valve must be located within 6--ft (1.83 m)
of the unit. The union, located in the final leg entering the
unit, must be located at least 9--in (230 mm) away from
the access panel to permit the panel to be removed for
service. If a regulator valve is installed, it must be located
a minimum of 4--ft (1220 mm) away from the unit’s flue
outlet. Some municipal codes require that the manual
shutoff valve be located upstream of the sediment trap.
See Fig. 21 and 22 for typical piping arrangements for gas
piping that has been routed through the sidewall of the
curb. See Fig. 23 for typical piping arrangement when
thru--base is used. Ensure that all piping does not block
access to the unit’s main control box or limit the required
working space in front of the control box.
581J
*14