Dodge Sprinter 2006 Manual page 2136

24 - 104 CABIN HEA TER
CABIN HEATER
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 104
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 104
DIAGNOSIS AND TESTING
SUPPLEMENTAL CABIN HEATER
EXHAUST TUBE
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 106
FUEL DOSING PUMP
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 106
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 106
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 107
FUEL LINE
STANDARD PROCEDURE
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . 107
CABI N H EAT ER
DESCRIPTION
Veh icles equ ipped wit h t h e diesel en gin e a r e a lso
equ ipped wit h a su pplem en t a l ca bin h ea t er. Th is
ca bin h ea t er is m ou n t ed u n der t h e veh icle a n d oper-
a t es sim ila r t o a n oil fir ed fu r n a ce. Th e h ea t er bu r n s
sm a ll a m ou n t s of fu el t o pr ovide a ddit ion a l h ea t t o
t h e coola n t . Coola n t is r ou t ed fr om t h e en gin e, t o t h e
su pplem en t a l ca bin h ea t er a n d t h en t o t h e fr on t
h ea t er cor e. Th is pr ovides a ddit ion a l h ea t t o t h e pa s-
sen ger com pa r t m en t . Th e su pplem en t a l ca bin h ea t er
syst em is in t er fa ced t o t h e veh icles on -boa r d com -
pu t er syst em s a n d DRBIII dia gn ost ics.
Th e su pplem en t a l ca bin h ea t er h a s a n elect r on ic
con t r ol m odu le t h a t m on it or s t h e h ea t ou t pu t of t h e
h ea t er. Th e ca bin h ea t er oper a t es a t fu ll loa d (5 kW),
h a lf loa d or idle m ode (n o a ddit ion a l h ea t ) depen din g
on en gin e coola n t t em per a t u r e.
OPERA TION
Th e su pplem en t a l ca bin h ea t er is a ct iva t ed by
u sin g t h e t em per a t u r e con t r ol on t h e A/C-h ea t er con -
t r ol. Th e su pplem en t a l ca bin h ea t er is a ct iva t ed
wh en t h e t em per a t u r e con t r ol is set t o/or a bove t h e
u pper set poin t . Th e su pplem en t a l ca bin h ea t er ca n
oper a t e in a fu ll or pa r t ia l loa d r a n ge a s well a s a n
idle m ode, a ll depen den t on t h e en gin e coola n t t em -
per a t u r e. Th e h ea t er u n it will a lso t u r n off if t h e
t em per a t u r e con t r ol is set t o less t h a n t h e lower set
poin t . Th e su pplem en t a l ca bin h ea t er ca n t a ke u p t o
t h r ee m in u t es t o com plet ely sh u t down wh en eit h er
CABI N H EAT ER
TABLE OF CONTENTS
page
REMOVAL
INSTALLATION
HEATER UNIT
REMOVAL
. . . . . . . . 104 HEATER UNIT
WIRE HARNESS
INSTALLATION
HEATER UNIT
WIRE HARNESS
INLET HOSE
REMOVAL
INSTALLATION
t h e h ea t er t em per a t u r e is set below t h e lower set
poin t or t h e veh icle ign it ion is t u r n ed off.
Th e su pplem en t a l ca bin h ea t er on ly oper a t es wh en
t h e en gin e is r u n n in g, t h e m ilea ge exceeds 8 kilom e-
t er (5 m ph ) a n d t h e fu el t a n k volu m e exceeds 1/8 of a
t a n k. Th e h ea t er sh ou ld st a r t if t h e coola n t t em per-
a t u r e is below 40° C (104° F ).
NOTE: Do not apply a strong vacuum directly on
the supplemental cabin heater exhaust line. Place
the vacuum within 75 mm (3 inches) of the exhaust
port. Too strong of a vacuum can prevent the heater
from starting. The heater control module monitors
the blower speed and combustion during its start-
up.
DI AGN OSI S AN D T EST I N G
SUPPLEMENTAL CABIN HEA TER
Refer t o t h e Sym pt om s Dia gn osis t a ble for ba sic
ch ecks of t h e diesel fu eled su pplem en t a l ca bin h ea t er.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
. . . . . . . . . . . . . . . . . . . . . . . . 109
. . . . . . . . . . . . . . . . . . . . . . . 110
. . . . . . . . . . . . . . . . . . . . . 110
. . . . . . . . . . . . . . . . . . . . . . . 110
. . . . . . . . . . . . . . . . . . . . . 111
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
. . . . . . . . . . . . . . . . . . . . . . . . 112
VA
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