Specifications

ManualsBrandsCarrier ManualsElectric Heater48EZ(N)-A

Installation Instructions

This kit is used on:

Two-Stage (2 - 5 Tons) Models: 48DU, 48DT, 48VG (208/230

VAC models), 48VR, 48XL, 48XT, 577B, 577D, 577E (208/230

VAC models), 677B, 677D and 677E. (Two-Stage conversion

starts on Page 2.)

Single-Stage (1-1/2-5 Tons) Models: 48ES "1" series or later

(Examples: 48ES-060130311, 48ES-060130511,

48ES-060130611), 48ES-A, 48ESNA, 48EZ "1" series or later

(Examples: 48EZ-060130311, 48EZ-060130511,

48EZ-060130611) 48EZ-A, 48EZNA, 48VG (460 VAC models),

48VL, 48VT, 574D "B" series or later (Examples:

574DNW060130NB, 574DPW060130NB, 574DEW060130NB),

574D*WA, 577C, 577E (460 VAC models), 674D "B" series or

later (Examples: 674DNW060130NB, 674DPW060130NB,

674DEW060130NB), 674D*WA, 677C, and all PY3G except

"B" series (Example: PY3GNA060115AB). (Single-Stage

conversion starts on Page 9.)

NOTE: Read the entire instruction manual before starting the

installation.

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service maintenance,

or use can cause explosion, fire, electrical shock, or other

conditions which may cause death, personal iniury, or property

damage. Consult a qualified installer, service agency, or your

distributor or branch for information or assistance. The qualified

installer or agency must use factory-authorized kits or accessories

when modifying this product. Refer to the individual instructions

packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing,

and work gloves. Have a fire extinguisher available. Read these

instructions thoroughly and follow all warnings or cautions

included in literature and attached to the unit. consult local

building codes, the current editions of the National Fuel Gas Code

(NFGC) NFPA 54/ANSI Z223.1, and the National Electrical Code

(NEC) NFPA 70.

In Canada refer to the current editions of the National Standards of

Canada CAN/CSA-BI49.1 and .2 Natural Gas and Propane

Installation codes, and Canadian Electrical Code CSA C22.1

Recognize safety information. This is the safety-alert symbol Z_

When you see this symbol on the unit and in instructions or manu-

als, be alert to the potential for personal iniury. Understand these

signal words: DANGER, WARNING, and CAUTION. These

words are used with the safety-alert symbol. DANGER identifies

the most serious hazards which will result in severe personal iniury

or death. WARNING signifies hazards which could result in per-

sonal iniury or death. CAUTION is used to identify unsafe practic-

es which may result in minor personal injury or product and prop-

erty damage. NOTE is used to highlight suggestions which will

result in enhanced installation, reliability, or operation.

FIRE, EXPLOSION, CARBON MONOXIDE

POISONING, PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal

iniury, death or property damage.

This conversion kit shall be installed by a qualified service

agency in accordance with the manufacturer's instructions

and all applicable codes and requirements of the authority

having jurisdiction. The qualified service agency is

responsible for the proper installation of this kit. The

installation is not proper and complete until the operation of

the converted furnace is checked as specified in the

manufacturer's instructions supplied in the kit.

FEU, EXPLOSION, EMPOISONNEMENT PAR

CARBON DE MONOXYDE, RISQUE DE

DOMMAGE A LA PROPRII_TI_

La n_gligeance de suivre l'avis suivant, peut causer des

blessures personnelles, la mort ou du dommage fi la

propri_t&

Cette trousse de conversion doit _tre install_e par un

Entrepreneur qualifi_, selon les instructions du fabricant et

doff se conformer fi routes les exigences et tout les codes

pertinents de l'autorit_ comp_tente. L'Entrepreneur qualifi_

est responsable, et doff s'assurer de bien suivre les

instructions dans cet avis. L'installation sera consid_r_

conforme et rencontrant les specifications et instructions du

fabriquant qui sont inclus dans la trousse, seulement apr_s

v_rification de l'op_ration de la fournaise convertie.

[]NIT OPERATION HAZARD

Failure to follow this caution may result in damage to unit

components.

Before converting a unit to propane gas, remove the burner

assembly and inspect the heat exchanger tubes. If there are

V-shaped NOx baffles installed in the firing tubes, (see

Fig. 1). THEY MUST BE REMOVED PRIOR TO

CONVERTING THIS UNIT TO PROPANE GAS.

Summary of content (16 pages)

PAGE 1
Installation Instructions This kit is used on: Two-Stage (2 - 5 Tons) Models: 48DU, 48DT, 48VG VAC models), 48VR, 48XL, 48XT, 577B, 577D, 577E VAC models), 677B, starts on Page 2.) 677D and 677E.
PAGE 2
Table I - Two-Stage Kit Contents ITEM PART Installation Instructions ItK-CPLPCONV-15 NO. QUANTITY 1 Propane Gas Orifice #50* LH32RF070 3 Propane Gas Orifice #51 * LH32RF067 3 Propane Gas Orifice #52* LH32RF065 3 Propane Gas Orifice #56" Propane Gas Orifice #54* LH32RF060 3 LH62RF055 3 Propane Gas Orifice #56* LH62RF047 3 Regulator Spring (92-0659) Pressure Switch EF39ZW026 2 HKO2LBO08 1 90 ° Elbow, 1/8 in. NPT CAO5RAO01 2 Nipple, 1/8 in. NPT x 2 in.
PAGE 3
9. Completely slide out the entire burner rack assembly from unit. 10. Inspect the inlet of the heat exchanger tubes for presence of V-shaped NOx baffles (see Fig. 1). If baffles are present, they must be removed prior to converting unit for propane gas. Using needle-nose pliers, remove NOx bafiles, squeeze sides of the baffle, if necessary, to remove from the heat exchanger tubes.
PAGE 4
Fan Partition Panel Fan Partition Mounting Bracket \ \ \ I I I I I I I I I I I See note below. Screw / NOTE: The fan partition bracket may be removed for easier access to the burner assembly. The bracket may be removed by removing 2 screws on the control side and sliding the bracket forward, bottom first. If the fan partition bracket was removed, place and fasten with 2 screws. slide bracket back into A09320 Fig.
PAGE 5
_ _ ON/OFF _,_ ....... PLASTICADJUSTSCREW SWITCH (Propane Natural 1/2" NPT - White, - Silver) INLET J 4/2" NPT OUTLET _ A07804 Fig. 3 - Two-Stage Gas Valve 18. Using a screwdriver, remove plastic adjust screws from both high and low stage gas regulators (see Fig. 3). Save plastic adjust screws. 19. Remove regulator springs (silver) from both high and low stage gas regulators (see Fig. 3). Discard regulator springs. 20. Install propane gas regulator springs (white) shipped with this kit.
PAGE 6
Table 2 - Two-Stage Sequence of Operations Inducer Pre-Purge Period: When the inducer motor comes up on high speed, the pressure switch closes, and the Infinity _ ignition control on the furnace board begins a 15 sec pre-purge period. If the pressure switch fails to remain closed, the inducer will remain running. After the pressure switch recloses, the Infinity ignition control will begin a 15 sec pre-purge period.
PAGE 7
IMPORTANT: Restart unitand including the main service manifold pipe plug. leak check connection, all gas connections gas valve, gas spuds, 38. After all leaks are eliminated, EXPLOSION, FIRE AND EXPLOSION could result in personal r PROPANE 4 - Propane CONVERSION access panel. Gas Orifice KIT INJURY this warning HAZARD could result in personal This unit is designed to operate at a minimum 10.0 IN. W.C. of manifold pressure with propane gas.
PAGE 8
BURNER (3) FLAME SENSOR I I MANIFOLD ORIFICE (3) TWO-STAGE90,000 BTUHTO 130,000 BTUH UNITS A08565 BURNER iNSERT (3) .... .\ \ r _. i ORIENTATION OF BURNER INSERT FLAME SENSOR (3) BURNER (3) _ "__ORIFICE SPARKER - GASVALVE (3) TWO-STAGE 60,000 BTUH UNITS ORIENTATION OF BURNER INSERT _ CLOSED END I //BURNER PiPE RACK PLUG ORiFiCE (2) TWO-STAGE 40,000 BTUH UNITS A08509 Fig.
PAGE 9
y_ f THIS FURNACE WAS CONVERTED CE GI_NI_RATEUR D'AIR CHAUD A I_T¢ ON CONVERTI LE - -TO PROPANE GAS (DAY - MONTH - - POUR (JOUR - MOIS - ANNEE) - YEAR) DEL'ENSEMBLE N°: KITNO.:CPLPCONV013B00 (0~2000ft.(0--610m) above sealevel' CPLPCONV013B00 (0~2000ft.(0~610m) above sealevel), CPLPCONV014B00 (2001 ~ 6000_ (611~1829m) above sealevel) CPLPCONV014B00 (2001~6000ft.
PAGE 10
TWO-STAGE GAS VALVE 1/8 NPTx3/4 IN. (19.1 MM) CLOSE PIPE NIPPLE 1/8 NPTx3/4 IN. (19.1 MM) CLOSE PIPE NIPPLE 1/8 ELBOW 1/8 ELBOW 1/8 N PTx 2 IN. (50.8 MM) NIPPLE O LOW GAS PRESSURE SWITCH A09016 Fig. 10 - Installing Elbows, Nipples, and Pressure Switch on Two-Stage Units FURNACE CONTROL BOARD PLUG P1 1 2 3 4 5 6 7 8 _ YEL ORN -_ ORN _-- LEGEND ORN = ORANGE YEL = YELLOW LGPS = LOW GAS PRESSURE SWITCH CAPS = COMBUSTION AIR PRESSURE SWITCH O = QUICK CONNECTION A06487 Fig.
PAGE 11
Table ITEM Installation Instructions 5 - Single-Stage Kit Contents PART NO. Propane Gas Orifice #50* Propane Gas Orifice #51 * Propane Gas Orifice #52* Propane Gas Orifice #53* Propane Gas Orifice #54* Propane Gas Orifice #56* Regulator Spring (92-0659) Pressure Switch 90° Elbow, 1/8 in. NPT Nipple, 1/8 in. NPT x 2 in. (51 mm) Close Pipe Nipple, 1/8 in. NPT x 3/4 in.
PAGE 12
17.Usinga screwdriver, remove the screw from the gas regulator ulator adjust screw. 18. Remove regulator Fig. 12. Discard spring (silver) regulator spring. 19. Install propane gas regulator this kit. (See Fig. 12). 20. Install plastic clockwise 21. Verify adjust plastic regulator adjust (see Fig. 12 ). Save plastic regfrom the gas regulator spring screw into (white) the gas (see shipped with regulator, turn 13.5 turns (see Fig. 12).
PAGE 13
31. With control access panel removed, observe unit heating operation. Watch burner flames to see if they are blue in appearance, and that the flames are approximately the same for each burner (see Fig. 15). FIRE 32. Turn off unit, remove pressure manometer and replace the 1/8 in. pipe fitting on the gas manifold (see Fig. 14). Failure to follow this warning injury and/or property damage. 33. Attach warning label (P/N 48DU500076) gas valve. Never test for gas leaks with an open flame.
PAGE 14
BURNER FLAME (Blue in appearance) BURNER MANIFOLD A07805 Fig. 15 - Monoport Burner / / / / Single-Stage 90,000 BTUH to 130,000 BTUH Units Single-Stage 40,000 BTUH to 60,000 BTUH Units A07873 Fig.
PAGE 15
Rollout Switch Burner Bracket A07874 Fig.
PAGE 16
LOW GAS PRESSURE SWITCH \ 1/8 NPTx 2 IN. (50.8 MM) NIPPLE SINGLE-STAGE GAS VALVE ELB OW 1/8 NPTx3/41N.(19.1 MM) 1/8 NPTx 3/4 (19.1MM) CLOSE PIPE NIPPLE CLOSE PIPE NIPPLE A09017 Fig. 18 - Installing FURNACE Elbows, Nipples, and Pressure Switch on Single-Stage Units CONTROLBOARD PLUG J2 1 2345678 c, ORN LEGEND ORN = ORANGE YEL= YELLOW LGPS = LOW GAS PRESSURE SWITCH CAPS = COMBUSTION AIR PRESSURE SWITCH Q = QUICK CONNECTION A07806 Fig.