Carrier KGANP5201VSP Installation Instructions Manual page 15

(Ifthe vent pipe passes between the inducer and burner assembly,
orthe furnace isa143/16-in. (360 ram) wide casing, install the
switch as follows (See F ig 29.):
1.Remove the l/8-in. N PT pipe p lug from the gas v alve i nlet
pressure tap.
NOTE: Use pipe dope a pproved foruse with Propane Gas.
NOTE:Tighten allfittings a nd theLowGas Pressure Switch
withasmall wrench. Donotover-tighten, check forgas leaks
after gas s upply has b een t urned on.
2.Apply pipe dope sparingly to themale threads of the
l/8-in, b lack i ron street elbow. Install the street elbow into
the gas v alve i nlet p ressure tap. P oint the open e nd ofthe
street elbow toward you.
3.Apply pipe dope sparingly to themale threads of the
l/8-in, b rass street tee. Install the male e nd ofthe street tee
as shown inFig29.One o pening onthe street tee should
face you. T he other opening should b e)arallel withthe
inlet o fthe gas v alve.
4.Apply pipe dope sparingly to themale threads of the
l/8-in, b rass h exnipple. Install thehexnipple intothe
open e nd ofthe brass street tee. See F ig 29. T he hex nipple
should beparallel withthe boss onthe gas v alve.
5.Install the open e nd ofthe brass street elbow onthe end of
thehexnipple. Tighten t hestreet elbow sothemale
threads ofthe elbow point away f rom you.
6.Apply pipe dope sparingly to themale threads of the
l/8-in, b rass s treet elbow. Install theLowGas P ressure
Switch o nthemale threads ofthe street elbow. Tighten
switch a thex fitting atbase o fswitch. Donotuse switch
body t otighten switch. Donot o ver-tighten switch.
7.The remaining opening onthe brass street tee isthe new
gas valve inletpressure tap. I nstall manometer fitting to
the open e nd ofthe brass street tee. Orif installation isto
becompleted later, apply p ipe dope t oinlet p ressure plug
from gas v alve a nd install inopen e nd ofbrass street tee.
8.Check a llfittings forleaks a fter g as supply h asbeen
turned on.
Casings Wider Than 14
3/16-in. (360 mm) / Vent Does Not
Pass Between Inducer and Burner Assembly
1. If the vent pipe does not pass between the inducer and
burner assembly, or the furnace is wider than a 14 3/16-in.
(360 ram) wide casing, install the switch as follows (See
Fig 30.):
2. Remove the 1/8-in. NPT pipe plug from the gas valve inlet
pressure tap.
NOTE: Use pipe dope approved for use with Propane Gas.
For larger casing when Vent Pipe does not pass across casing. All Sizes
switch contacts must point toward the Cell Panel. Black Iron Street 90 can be
used at Valve Inlet instead of Brass Street 90.
Brass Street Tee
Inlet Pressure Tap with Plug
Low Gas Pressure Switch/Q2i_ '" Brass Nipple
A11366
Fig. 30 - LGPS for Casing Wider Than 14-3/16 (360 mm)
and Vent Does Not Pass Between Inducer and Burner As-
sembly
INSTALL LOW GAS PRESSURE SWITCH WIRES
1. Locate the orange wire in the kit with an insulated straight
female spade terminal and an insulated straight male ter-
minal on the other end.
2. Connect the female terminal to a terminal on the Low Gas
Pressure Switch.
3. Locate the orange wire in kit with an insulated straight fe-
male spade terminal and an insulated female flag terminal
on the other end.
4. Connect both straight female terminals of the orange wires
to the terminals on the Low Gas Pressure Switch.
INSTALL MANIFOLD
1. Align the orifices in the manifold assembly with the sup-
port rings on the end of the burner.
2. Insert the orifices in the support rings of the burners. Man-
ifold mounting tabs should fit flush against the burner
box.
NOTE: If manifold does not fit flush against the burner box, the
burners are not fully seated forward. Remove the manifold and
check burner positioning in the burner box assembly.
3. Attach the green/yellow wire and ground terminal to one
of the manifold mounting screws.
4. Install the remaining manifold mounting screws.
5. Connect the wires to the flame sensor and hot surface ig-
niter.
6. Connect the connector harness to gas valve.
NOTE: Use only propane-resistant pipe dope. Do not use Teflon
tape.
7. Insert the gas pipe through the grommet in the casing. Ap-
ply a thin layer of pipe dope to the threads of the pipe and
thread the pipe into the gas valve.
NOTE: Use a back-up wrench on the gas valve to prevent the
valve from rotating on the manifold or damaging the mounting to
the burner box.
8. With a back-up wrench on the inlet boss of the gas valve,
finish tightening the gas pipe to the gas valve.
9. Turn gas on at electric switch on gas valve.
MODIFY PRESSURE SWITCH WIRING
Brass Hex Nipple
A11367
Fig. 29 - LGPS for 14-3/16 Casing or When Vent Passes
Between Inducer and Burner Assembly
[]NIT OPERATION HAZARD
Failure to follow this caution may result in unit damage or
improper operation,
Label all wires prior to disconnection when servicing
controls,
15