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3.12.7 ELECTRIC HEATER SUPPLEMENTAL INFORMATION
MFG DATE/
FRQ:
MODEL/MODELE#
VOLTS 208/240
ATTENTION:
HEATER MODEL/
MODELE D'APPAREIL
DE CHAUFFAGE
X
NO HEAT
RXHJ-21B03J
RXHJ-21B05J
RXHJ-21B08J
RXHJ-21B10J
S = SINGLE CIRCUIT/CIRCUIT SIMPLE
INDOOR BLOWER MOTOR LOAD INCLUDED IN CIRCUIT # 1 OR TOTAL SUPPLY WIRE MUST BE RATED AT 75°C MINIMUM COPPER CONDUCTORS ONLY TEST EXTERNAL STATIC
RANGE .1 TO .5 IN. W.C. (HEAT PUMP & ELECTRIC HEAT).
UNITS WITH ELECTRIC HEATERS: CLEARANCE TO COMBUSTIBLE MATERIAL TO BE 0 IN. TO UNIT CASING AND 0 IN. TO PLENUM AND DUCT FOR FIRST 36 IN. MODELS HAVE
INTEGRAL CIRCUIT BREAKERS WHICH PROVIDE SUPPLEMENTARY OVERCURRENT PROTECTION AND SERVE AS A MAINTENANCE "DISCONNECT". SUPPLY CIRCUIT NOT TO
EXCEED 120 VOLTS TO GROUND ON SINGLE PHASE UNITS. REPLACE LINE SIDE BREAKER COVER(S) AFTER MAKING WIRING CONNECTIONS TO BREAKER(S). IF BLOWER-
CONTROL ASSEMBLY REQUIRED REMOVAL, SEE "WARNING HAZARDOUS VOLTAGE".
CHARGEMENT DU MOTEUR SOUFFLEUR INTERNE INCLUS DANS LE CIRCUIT # 1 OU CAPACITÉ D"ALIMENTATION TOTAL DOIT ÉTRE DE 75C DU MINIMUM DE CONDUCTEURS
DE CUIVRE SEULEMENT. TESTER L'INTERVALLE STATIQUE EXTERNE : 1 À 5 PO W.C. (THERMOPOMPE ET CHAUFFAGE ÉLECTRIQUE)
UNITÉS AVEC CHAUFFAGES ÉLECTRIQUES : LE DÉGAGEMENT AUX MATIÈRES COMBUSTIBLES DOIT ÉTRE DE 0 po AU BOITIER DE L'UNITÉ ET DE 0 po AU PLÉNUM ET CONDUIT
POUR LES 36 PREMIERS po. LES MODÈLES DISPOSENT DE DISJONCTEURS INTÉGRÉS QUI FOURNISSENT UNE PROTECTION SUPPLÉMENTAIRE DE SURINTENSITÉ DE COURANT ET
SERVENT DE « SECTIONNEUR » D'ENTRETIEN. LE CIRCUIT D'ALIMENTATION NE DOIT PAS DÉPASSER 120 VOLTS JUSQU'AU SOL SUR DES UNITÉS MONOPHASÉES. REMPLACER
LE(S), COUVERCLE(S) DU DISJONCTEUR DU DISJONCTEUR DU CÔTÉ SECTEUR APRÉS AVOIR EFFECTUÉ LA CONNEXION DES CÂBLAGES AU(X) DISJONCTEUR(S). SI L'ASSEMBLAGE
DE CONTRÔLE DU VENTILATEUR A BESOIN D'ÉTRE DÉSASSEMBLÉ, CONSULTER "AVERTISSEMENT DE TENSION DANGEREUSE
Heater Kit Supplemental Information:
up to 60 amps inside the air handler, when using an approved Heater Kit?
National Electric Code (Section 424-22b) and our UL requirements allow us to subdivide heating element
circuits, of less than 48 amps, using breakers of not more than 60 amps and, additionally by, NEC 424-3b, a
rating not less than 125 percent of the load and NEC 424-22c, which describes the supplementary overcur-
rent protection required to be factory-installed within, or on the heater. The breakers in the heater kit are not,
and have never been, by NEC, intended to protect power wiring leading to the air handler unit. The breakers
in the heating kit are for short circuit protection. All internal unit wiring, where the breakers apply, has been
UL approved for short circuit protection.
Ampacity, (not breaker size), determines supply circuit wire size. The ampacity listed on the unit rating plate
and the Maximum and Minimum circuit breaker size (noted above) or in the units specification sheet or
installation instructions provides the information to properly select wire and circuit breaker/protector size.
The National Electric Code (NEC) specifies that the supply or branch circuit must be protected at the source.
RHEEM SALES COMPANY, INC.
12/2009
RF1P2421STAN00
PH/HZ 1 / 60
MARK HEATER KIT INSTALLED IN LEFT COLUMN/LA TROUSSE D'APPAREIL
DE CHAFFAGE DE MARQUE A INSTALLE DANS LA COLONNE GAUCH´E
TYPE SUPPLY
CIRCUIT/TAPER
VOLTAGE/
PHASE
LE CIRCUIT
TENSION
DE PROVISION
SINGLE
208/240
1/60
SINGLE
208/240
1/60
SINGLE
208/240
1/60
SINGLE
208/240
1/60
Only listed kits can be applied
M = MULTIPLE CIRCUIT/CIRCUIT MULTIPLE
What allows the manufacturer to use standard Circuit Breakers
F000900001
SERIAL/EN SERIES #
MOTOR HP/F.L.A.
MOTEUR PSC/F.L.A.
MOTOR
HEATER AMPS/
AMPS/
KW
AMPLIS D'APPARIEL
LES AMPLIS
DE CHAUFFAGE
MOTEURS
0
1.5
2.25/3.0
10.8/12.5
1.6
3.6/4.8
17.3/20.0
1.6
5.4/7.2
26.0/30.0
1.6
7.2/9.6
34.6/40.0
1.6
ASSEMBLED IN THE U.S.A.
AREUNI AUX STATS–UNES
Contractor
should "mark
1/5
/
1.5
or check" the
left column for
MAXIMUM
MINIMUM
the kit installed.
OVERCURRENT
BRANCH CIRCUIT
PROTECTION/ LA
AMPACITY
PROTECTION
MINIMUM DE
MAXIMUM DE
CIRCUIT DE
OVERCURRENT
BRANCHE
15
3.0
These are
20/20
16/18
25/30
24/27
the required
35/40
35/40
maximum and
46/52
50/60
minimum circuit
breaker sizes
for overcurrent
protection and
should not be
confused with
the size of
the breakers
installed in the
heater kit.
19
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