Carrier 58MXA Installation, Start-Up, And Operating Instructions Manual page 11

2. Inducer Housing Drain Tube
a Remove and discard LOWER ( molded) inducer housing
drain t ube which w as previously connected tocondensate
trap.
b.Use inducer housing &ain extension tube (violet label and
fhctoD--supplied inloose p arts b ag) t oconnect LOWER
inducer housing &ain connection tothe condensate trap
c.Determine appropriate length, cut, a nd connect robe.
d.(lamp robe t oprevent any condensate leakage.
3.Relief Port T ube
a.Extend collector boxrobe (green label) which w as previ=
ously c onnected tothe condensate trap bysplicing tosmall
diameter robe (fhctory=supplied inloose p arts b ag).
b.Route e xtended collector boxpressure robe torelief p ort
connection onthe condensate trap.
c.Determine appropriate length, cut, a nd connect robe.
d.Clamp r obe t oprevent any condensate leakage.
CONDENSATE TRAP FIELD DRAIN ATTACHMENTS
Refer t o Condensate Drainsection fbr recommendations and
procedures.
PRESSURE SWIT(H TUBING
The LOWER c ollector boxpressure tube (pink label) is fhctory
connected tothe
pressure switch for use when Ihrnace is installed
in UPFLOW applications. This robe MUST be disconnected,
extended, rerouted, and then reconnected to the pressure switch in
HORIZONTAL LEFT applications.
NOTE: See Fig. 10 or tube routing label on main Nrnace door to
check for proper connections.
Modif}" robe as described below.
1. Disconnect collector box pressure tube (pink label) attached to
pressure switch.
2. Use smaller diameter tube (factov-supplied in loose parts
bag) to extend robe disconnected in item 1.
3. Route extended robe:
a. Behind inducer housing,
b. Between blowe* shelf" and inducer housing.
c. Behind inducer motor bracket.
d. Between inducer motor and pressure switch.
4. Detem_ine appropriate length, cut, and reconnect robe to
pressure switch connection labeled COLLECTOR BOX.
CONDENSATE TRAP FREEZE PROTECTION
Refer to Condensate Drain Protection section for recommenda°
tions and procedures.
CONSTRU(T A WORKING PLATFORM
Construct working platfbrm where all required Ihrnace clearances
are met, (See Fig. 3 and 11.)
[TNIT MAY NOT OPERATE
Failure to %llow this caution may result in intem_ittent unit
operation.
The condensate trap MUST be installed below furnace See
Fig 5 ibr dimensions. The drain connection to condensate
trap must also be properly sloped to an open &ain.
NOTE: Combustion-air and vent pipes are restricted to a mini°
mum length of 5 it. (See Table 7.)
--€
11
NOTE: A 12-in mininmm of_ket pipe section is recommended
with short (5 to 8 It) vent systems. This recommendation is to
reduce excessive condensate droplets fiom exiting the vent pipe,
(See Fig 11 or 34)
Step 5--Horizontal Right {Supply-Air Discharge)
Applications
A horizontal right furnace application is where furnace blowei is
located to the left of combustion and contlols section of ihmace,
and conditioned air is discharged to the right.
PROPERTY DAMAGE
Failure to ibllow this caution may result in minor property
damage
Local codes may require a drain pan under entire Ihrnace and
condensate trap when a condensing fhrnace is used in attic
application or over a finished ceiling.
NOTE: In Canada, installations shall be in accordance with
cun'ent NS(NGPI( Installation Codes and/or local codes
NOTE: The junction box (J-Box) MUST be relocated to opposite
side of furnace casing. (See Fig. 12.) See Electrical Connection
section for J-Box relocation.
CONDENSATE TRAP LOCATION
The condensate trap must be removed fi'om the fi_ctory°installed
blower shelf location and relocated in selected application location
as shown in Fig. 2 or 12,
To relocate condensate trap fiom the blowei shelf to desired
location, perfbnn the following:
1 Remove 3 tubes connected to condensate nap.
2. Remove trap from blower shetfby gently pushing tabs inward
and rotating trap.
3. Install casing hole filler cap (ihctory=supplied in loose parts
bag) into blower shelf hole where trap was removed.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning coutd result in personal inju W
or death.
Casing hole filler cap must be installed in blower shelf" hole
when condensate trap is relocated to prevent combustion
products being drawn in from appliances in the equipment
roonl.
4. Install condensate trap into left=hand side casing hole by
inserting tube connection stubs through casing hole and
rotating until tabs snap into locking position.
5 Fill unused condensate tlap casing holes with plastic filler
caps (Pactory=supplied in loose parts bag).
CONDENSATE TRAP TUBING
NOTE: See Fig. 12 or robe routing label on main Ihrnace door to
check for proper connections
1 Collector Box Drain Tube
a Remove factory-installed plug from LOWER collector box
drain robe (blue and white striped label).
b Install removed clamp and plug into UPPER collector box
drain tube (blue label) which was previously connected to
condensate trap.
c Connect LOWER collector box drain tube (blue and white
striped label) to condensate trap Tube does not need to be
cut,