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SUPRA 750Mt

Carrier SUPRA 850Mt, SUPRA 750Mt, SUPRA 950Mt Operation And Service Manual

Carrier TranCarrier Tran
sicold Division, Carrier Corporatiosicold Division, Carrier Corporatio
n, P.O. Box 4805, Syracuse, N.Y. 13221 n, P.O. Box 4805, Syracuse, N.Y. 13221
U. S. U. S.
OPERATION ANDOPERATION AND
SERVICE MANUALSERVICE MANUAL
TRUCK REFRIGERATION UNITTRUCK REFRIGERATION UNIT
SUPRASUPRA
750Mt750Mt
©©
Carrier Refrigeration Operation 2004Carrier Refrigeration Operation 2004
DD
Printed in FrancPrinted in Franc
e 03-04 / 62-e 03-04 / 62-
-611XX--611XX-
-20-20
Carrier Transicold EurCarrier Transicold Eur
ope -ope -
- 10, Bd de l’O- 10, Bd de l’O
ise -ise -
- 95031 Cergy - 95031 Cergy
Pontoise Cédex Pontoise Cédex
--
- FRAN- FRAN
CECE
, 850Mt, 850Mt
, 950Mt, 950Mt
ii
62-62-
-611XX--611XX-
-20 -20
(03/04)(03/04)
TABLE OF CONTENTSTABLE OF CONTENTS
PagePage
Section 1Section 1
SSAAFFEETT
Y Y IINNSSTTRRUUCCTTIIOONNS S 11--11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 2Section 2
DDEESSCCRRIIPPTTIIOON N
22--11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..1 1 IInnttrroodduuccttiioon n 22--11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..2 2 EEnnggiinne e DDaatta a 22--1111
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..22..1 1 CCoooolliinn
g g cciirrccuuii
t t 22--1111
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..3 3 CCoommpprreessssoor r RReeffeerreenncc
e e DDaatta a 22--1111
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..4 4 RReeffrriiggeerraattiioo
n n SSyysstteem m DDaatta a 22--1111
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..5 5 EElleeccttrriiccaal l DDaatta a 22--1122
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..6 6 TToorrqquue e VVaalluuees s 22--1133
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..7 7 SSaaffeetty y DDeevviiccee
s s 22--1144
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..8 8 MMiiccrroopprroocceessssoor r CCoonnttrroolllleer r 22--1155
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..1 1 IInnttrroodduuccttiioon n 22--1155
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..2 2 KKeeyyppaad d 22--1166
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..3 3 SSwwiittcchhees s aann
d d ccoonnttrroolls s 22--1177
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..4 4 SSeettppooiinnt t 22--1177
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..5 5 DDiiggiittaa
l l DDiissppllaa
y y 22--1188
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..6 6 FFuunnccttiioonnaal l ppaarraammeetteerrs s 22--1188
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..7 7 UUnniit t DDaatta a 22--1199
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..8 8 AAllaarr
m m DDiissppllaa
y y 22--2211
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..9 9 HHeeaatt//CCoooo
l l mmoodde e 22--2233
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..11
0 0 DDeeffrrooss
t t ccyyccll
e e 22--2233
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..11
1 1 CCoonnttiinnuuoouus s oor r SSttaarrtt//SSttoop p OOppeerraattiioo
n n 22--2244
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..11
2 2 OOppttiioonnaal l ccoonnttrroo
l l ppaannee
l l 22--2244
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..88..11
3 3 RReemmootte e MMoonniittoorriinng g
- - MMiiccrroolliinn
k k ((OOppttiioonnaall) ) 22--2266
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..9 9 RReeffrriiggeerraattiioo
n n ccoommppoonneenn
t t ooppeerraattiioo
n n 22--2266
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.9.2.9.
1 1
ComCom
prepre
ssosso
r r
prepre
ssussu
re re
regreg
ulaula
ting ting
valval
ve ve
(CPR(CPR
) )
( (
see see
FigFig
ure ure
2-1 2-1
& &
FigFig
ure ure
2-2 2-2
) )
2-22-2
66
22..99..2 2 MMaaiin n HHeeaat t VVaallvv
e e MMHHVV1 1 ((NNOO) )
/ / MMHHVV2 2 ((NNCC) ) 22--2266
. . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.92.9
.3 .3
HoHo
t Gat Ga
s Vs V
alal
veve
s Hs H
GV 1GV 1
, 2 , 2
& 3 & 3
(NC(NC
), L), L
iqiq
uiui
d Sd S
ucuc
tiotio
n Vn V
alal
veve
s Ls L
SV 1SV 1
, 2 , 2
& 3 & 3
(NC(NC
) )
2-2-
2727
22..99..4 4 AAccccuummuullaattoo
r r 22--2277
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.9.2.9.
5 5
By-By-
-pass -pass
valval
ve ve
(NC) (NC)
(Sup(Sup
ra ra
850850
MtMt__oonnllyy) ) 22--2277
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..99..6 6 LLiiqquuiid d ssiigghhttggllaasss s 22--2277
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..99..7 7 FFiilltteer r ddrriiee
r r
( ( ssee
e e FFiigguurre e 22--
1 1
& & FFiigguurre e 22--
2 2
) ) 22--2288
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..99..8 8 SSeerrvviicc
e e vvaallvv
e e 22--2288
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..99..9 9 HHoo
t t ggaa
s s bbyyppaasss s uunnllooaaddeer r 22--2288
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..99..11
0 0 BBaatttteerr
y y cchhaarrggiinng g aalltteerrnnaattoor r 22--2299
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22..11
0 0 ggeenneerraattoo
r r ((SSiinnggll
e e pphhaass
e e aalltteerrnnaattoorr
) ) 22--3300
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii
2.10.1 Use of diagnosis connection of control box (see Figure 2-16) 2-30
. . . . . . . . . . . . .
2.10.
2 Intervention on generato
r fo
r analysis 2-30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1
1 Refrigeran
t Circui
t 2-32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.11.
1 Coolin
g mode 2-32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.11.
2 Heat an
d defros
t mode 2-33
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 3
OPERATION
3-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Pre-trip Inspection 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Starting an
d Stopping Instructions -- Engine driv
e 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1 Starting Instructions 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Starting and Stopping Instructions -- Standby motor drive 3-2. . . . . . . . . . . . . . . . . . . . .
3.4 Compartmen
t operatio
n 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.1 Operatio
n with ca
b comman
d 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.2 Operatio
n with auxiliar
y contro
l pane
l 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Contro
l Circui
t operatio
n 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.1 Introduction 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.2 Temperatur
e Contro
l Logi
c 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.3 Sup
ra 950
Mt_specifi
c logi
c 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.4 Sup
ra 850
Mt_specifi
c logi
c 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.5 Rela
y operatio
n 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 4
SERVICE
4-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Maintenanc
e schedule 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Descriptio
n of Servic
e Requirements 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Servicin
g engine relate
d components 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 Coolin
g system 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2 Changing Lube Oi
l an
d Lube Oi
l filter
s 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.3 Fuel filter an
d fuel circui
t 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.4 Replacin
g solenoid
s (Figur
e 4-3) 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.5 Engine ai
r cleane
r 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.6 Servicin
g fuel pump 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.7 Servicin
g Glow plug
s 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.8 Clutch contro
l 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.9 Servicin
g alternator 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Servicin
g an
d adjustin
g v-belt
s 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.1 Belt tensio
n gaug
e 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2 Trapezoida
l V-belt 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.3 Alternator V-belt 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.4 Wate
r pump belt tensione
r 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.5 Standby motor - Compress
or V-belt, Dies
el engi
ne - Compressor V-belt 4-9..
.
4.5 Pumping the unit down or removing the refrigerant charge 4-9. . . . . . . . . . . . . . . . . . . . .
4.6 Refrigeran
t leak checking 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iii
62-
-611XX-
-20
(03/04)
4.7 Evacuation an
d dehydratio
n 4-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7.1 Genera
l 4-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7.2 Preparatio
n 4-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7.3 Procedur
e fo
r Evacuation an
d Dehydratin
g system 4-10
. . . . . . . . . . . . . . . . . . . . .
4.8 Charging th
e refrigeran
t system 4-11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.1 Installing
a complete charge 4-11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.2 Checking th
e refrigeran
t charge 4-11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9 Replacin
g th
e compressor 4-12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1
0 Checking 05
K
/ 05
G compressor oi
l leve
l 4-12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.11 Compre
ssor unlo
ader val
ve -
- For Supra 850Mt
_
& 950Mt
_
onl
y 4-13
. . . . . . . . . . . . . . . .
4.1
2 Checking an
d replacin
g filter-drier 4-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1
3 Checking an
d replacin
g high pressure cutout switch 4-14
. . . . . . . . . . . . . . . . . . . . . . . . . .
4.13.
1 Replacin
g high pressure switch 4-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.13.
2 Checking high pressure switch 4-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1
4 Checking an
d replacin
g lo
w pressure cutout switch 4-15
. . . . . . . . . . . . . . . . . . . . . . . . . . .
4.14.
1 Replacin
g lo
w pressure switch 4-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.14.
2 Checking lo
w pressure switch 4-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1
5 Replacin
g receiver sigh
t glas
s assembly 4-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1
6 coil
s cleaning 4-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.16.
1 Evaporator coil 4-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.16.
2 Condense
r coil 4-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.17 Adjusting the compressor pressure regulating valve (CPR) 4-16. . . . . . . . . . . . . . . . . . . .
4.1
8 Thermostatic expansio
n valv
e 4-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1
9 Microprocessor 4-18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.19.
1 Servic
e guidelines 4-18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.19.
2 Microprocessor configuratio
n 4-19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.19.
3 Controller sensor checkout 4-20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.19.
4 Suctio
n pressure transducer 4-21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 5
TROUBLESHOOTING 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Diesel Engine 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.1 Engine will no
t star
t 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.2 Engine starts then stop
s 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.3 Starte
r moto
r malfunctio
n 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.4 Malfunctio
n in th
e engine starting circui
t 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Alternator (automotiv
e type
) 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Refrigeratio
n 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1 Unit will no
t cool 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.2 U
nit runs bu
t ha
s insufficient coolin
g 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
g 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.4 Unit will no
t heat or ha
s insufficient heatin
g 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.5 Defros
t cycl
e malfunctio
n 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv
5.3.6 Abnormal pressure 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.7 Abnormal nois
e 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.8 Contro
l system malfunctio
n 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.9 No evaporator ai
r flow restricted ai
r flow 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1
0 Expansio
n valv
e malfunctio
n 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1
1 Ho
t ga
s valv
e malfunctio
n 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Standb
y moto
r malfunctio
n 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 6
EXTRACT FROM MATERIAL SAFETY DATA BULLETIN 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1
poe
oil
6-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 forane R404
a 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 7
ELECTRICA
L SCHEMATI
C WIRING DIAGRA
M 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
v
62-
-611XX-
-20
(03/04)
LIST OF FIGURES
Figure
2-1
Supra
750Mt
_
/ 850Mt
_
Model
s 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure
2-2
Supra
950Mt
_
Model
2-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-
3 Evaporator MT
S mode
l 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-
4 Evaporator MT
D mode
l 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-
5 Electrical bo
x 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-
6 Contro
l rela
y boar
d view 2-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-
7 Ca
b Comman
d 2-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-
8 Auto Star
t Sequence 2-25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-
9 Main Heat Valves -- NO an
d NC 2-26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-10 Ho
t ga
s
& Liquid Suctio
n Valves -- NC 2-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-11 Accumulato
r 2-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-12 By--pass valves -- NC 2-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2-13 Compressor cylinder heat unloader Hot gas bypass 2-28. . . . . . . . . . . . . . . . . .
Figure 2-14 Compressor cylinder head loader Hot gas bypass 2-29. . . . . . . . . . . . . . . . . . .
Figur
e 2-15 50 Am
p Alternator an
d Regulato
r 2-30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-16 Generato
r an
d connection in contro
l bo
x 2-30
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-17 Coolin
g Cycl
e 2-34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 2-18 Heat an
d Defros
t Cycl
e 2-35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figu
re
3-1 Temp
era
ture
Con
trol
ler
Oper
atin
g S
equ
enc
e (
Peri
sha
ble
Ran
ge) ........
Controller Set Point Above --12
_
C (+10
_
F
)
3-9
. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3-2
Temperatur
e Con
troller Op
era
tin
g Seq
uence “Le
ad
” Eva
po
rat
or ........
.
(Perishable Range) Controller Set Point Above --12
_
C (+10
_
F
) 3-9. . . . . . . .
Figure 3
-3 Tempera
tur
e Controller
Ope
rating Sequence (
Frozen Range) ...........
Controller Set Point Below --12
_
C (+10
_
F
) 3-10
. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3-4
Temperatur
e Con
troller Op
era
tin
g Seq
uence “Le
ad
” Eva
po
rat
or ........
.
(Frozen Range) Controller Set Point Below --12
_
C (+10
_
F
) 3-10
. . . . . . . . . . .
Figur
e 4-
1 Coolin
g circui
t 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 4-
2 Fuel filter an
d fuel circui
t 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 4-
3 Spee
d an
d ru
n contro
l solenoid
s 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 4-
4 Electric fuel pump 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4-5 Electronic Belt Tension meter (part no. 07-60098--00) 4-8. . . . . . . . . . . . . . . . .
Figur
e 4-
6 V-belt arrangemen
t 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 4-
7 Dual Vacuum Pump Connection
s 4-11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 4-
8 Compressor
s 4-12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 4-
9 Unloader solenoid valv
e 4-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4-10 Typical setup for testing high pressure switch 4-15. . . . . . . . . . . . . . . . . . . . . . .
Figur
e 4-11 Compressor pressure regulating valv
e 4-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figur
e 4-12 Thermostatic expansio
n valv
e 4-17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4-13 Thermostatic expansion valve bulb and thermocouple 4-17
. . . . . . . . . . . . . . . .
Figu
re
7-1 -
-
Ele
ctri
cal
sch
ema
tic
dia
gram -- MICR
OPROC
ESSOR
CONT
ROLL
ER
7-2
.
vi
LIST OF TABLES
Table 2-
1 Condensers Mode
l Char
t 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-
2 Evaporator
s Mode
l Char
t 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-
3 Evaporator
s designatio
n 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-
4 Safety Device
s 2-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-
5 Function Parameters 2-18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-
7 Unit Data Code
s 2-20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-
8 Alar
m Displa
y 2-21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-10 Batter
y Voltages 2-26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
y Operatio
n -- Microprocessor Controller 3-6. . . . . . . . . . . . . . . . . . . . . . . . .
Table 4-
1 Belt tensio
n 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4-
2 Connection Poin
t Voltag
e 4-18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4-
3 Microprocessor Configuratio
n 4-19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4-4 Sensor Resistance (ATS, DTS, CDT, RAS, SAS & WTS) 4-20
. . . . . . . . . . . . . . . .
Table 4-
5 R-404A Temperature-Pressure char
t 4-21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
62-611XX-
-
20
(03/04)
SECTION 1
SAFETY INSTRUCTIONS
This manual contains safety and service instructions to follow in order to prevent any accident. Stickers have
been placed on the product for your
SAFETY
.
BEFOR
E
USIN
G
THIS
REFR
IGERA
NT
UNIT
,
read
care
fullyall
safetyinfo
rma
tion
exp
lai
ned
in this manual and indicated on the product. Be sure that everybody who will use this
refrigeration unit has been trained to use it in a safe way.
DURING THE USE OR MAINTENANCE OF THIS REFRIGERATION UNIT
, the
notes on safety are to be considered.
Personal Protective Equipment :
Always
use
adequ
ate
Person
al
Protectiv
e
Equipm
ent
before
doinganything
on
this
refrige
rant unit,
as explained in
this manual.
Working at height :
Take all necessary safety precautions when accessing this refrigeration unit : use
safe ladders, working
platform
s
with appropriate guards.
Automatic start :
This refrigeration unit is
equip
ped with
Auto-
-Start/Stop,
a valuable fuel
savin
g
fea
ture
. Whe
n
thisrefrige
rationunitis
set
for
Auto-
-start/
Stop
ope
rationit
may
star
t
at any time and without warning.
Be
forese
rvicing
ref
rig
era
tionun
it,makesure
themainpowersw
itchisontheOFF
position. Ensure the unit will not restart.
Lock--out / Tag--out can be performed by disconnecting and enclosing:
-- The negative battery cable in diesel mode;
-- The electrical plug in electrical mode.
1-2
Belts and fans :
This refrigeration unit is equipped with Auto--start/stop, it may start at any time
and without warning.
When the unit is running beware of belts and fans that are moving.
Before servicing refrigeration unit, make sure the main power switch is on the
OFF position. Ensure the unit will not restart. Lock--out / Tag--out can be
performed as described above.
When there is protective structure (fan grid or guard for example) make sure
they are in place. Never removed them when the refrigeration unit is running.
Always keep your hands, body
parts, clothes, hairs and
tools far
from moving
parts.
Electricity :
When this refrigeration unit is running in electrical operation, some devices are
powere
d
up especiall
y
in the
electri
cal control box.
Before servicing refrigeration unit, make sure the main power switch is on the
OFF position. Ensure this refrigeration unit is disconnected from the local
electrical network.Lock--out / Tag--out can be performed as described above.
Before working in the electrical control box, it is required to control the lack of
tension.
WHEN IT IS NECESSARY TO WORK IN THE ELECTRICAL CONTROL BOX
UNDER TENSION, PEOPLE MUST BE QUALIFIED FOR WORKS UNDER
LOW OR HIGH VOLTAGE.
Always use adequate tools and Personal Protective Equipme
nt when
workin
g
on electrical devices : safety gloves and safety glasses.
Engine coolant :
This refrigeration unit is equipped with a pressurised cooling system. Under
normal operating conditions, the coolant in the engine and radiator is under high
pressure and very hot.
Coolant is very slippery. It can be harmful in case of ingestion.
Never remove the cap from a hot radiator when this refrigeration unit is running
or immediately after.
If the cap must be removed, wait at least 10 minutes and then do so very slowly
in order to release the pressure without spray.
In case of leakage, immediatly clean the floor to prevent slipping.
Avoid contac
t
with the
skin and eyes.
Always use Personal Protective
Equipment when handling engine coolant : safety clothes, safety gloves and
safety glasses.
Refrigerant :
The refrigerant contained in this refrigeration unit can cause frosbite, severe
burns or blindness in case of projection and direct contact with the skin or eyes.
In contact with flame or heat refrigerant generate toxic gas.
Refrigerant handling must be done by qualified people.
Keep any flame, any lighted object or any source of sparks away from the refri-
gerant unit.
Always use Personal Protective Equipm
ent when handling refrigeran
t : safety
clothes
,
safety glov
es and safety gl
asses.
1-3
62-611XX-
-
20
(03/04)
Burning with hot and cold :
When this refrigeration unit is running or even after, different components can
be very cold or hot (exhaust pipe, tubes, coils, receiver, accumulator or engine
for example)
Beware when operating closed from cold or hot components.
Always use adequate safety gloves when doing any
mainte
nance on this
refrigeration unit.
Cutti
ngs
:
Beware when handling or operating closed from parts that could be sharp (coils,
evaporators, clamps for example).
Always
use
adequ
ate
safety
glove
s
when
doing
any
mainte
nance
on
this
refrigeration unit.
Battery :
This refr
ige
rati
on
unit may
be
equ
ipp
ed
with a
lead--acid
type
batt
ery. Whe
n
charging the battery normally vents small amounts of flammable and explosive
hydrogen gas.
Projections of acids on the skin or eyes can cause severe burns.
Keep any flame, any lighted object or any source of sparks away from the battery
elements.
Always use Personal Protective Equipm
ent when handlin
g and charging battery:
safety clothes, safety gloves and safety glasses.
Environment :
Think about protection of environment during all the life of this refrigeration unit.
Topre
ventenv
iron
men
tal
dam
agesNEV
ER
rel
easerefr
ige
rantinthe
atmo
sph
ere
,
NE
VER
thr
ow coolant, oil, batte
ry and chemicals in the natur
e.
It must
be
recuperate and recycle according to current regulations.
When disposing this refrigerant unit do it in an environmentally sound way and in
accordance with current regulations.
CAUTION
Under no circumstances should anyone attempt to repair the Logic or Display Boards. Should a problem
develop with these component, contact your nearest Carrier Transicold dealer for replacement.
Under no circumstances should a technician electrically probe the processor at any point, other than the
conne
ctor
termina
ls
where the
harnes
s
attaches
.
Microp
rocess
or
compo
nents operate
at
differe
nt
voltage
level
s and
at extremely low current levels. Improper use of
voltmete
rs, jumper wires, continuity testers, etc.
could permanently damage the processor.
Mostele
ctro
nic
com
pon
entsare
sus
cep
tibleto
dam
age
cau
sedbyele
ctri
cal
staticdis
cha
rge
(ESD
).Incert
ain
cases
,
the human body can have enough static electricity to
cause resulta
nt damage to
the componen
ts by
touch. This is especially true of the integrated circuits found on the truck/trailer microprocessor.
2-1
SECTION 2
DESCRIPTION
2.1 INTRODUCTIO
N
WARNING
Beware
of
una
nno
unc
ed starting
of
engine or standby motor caused by the
unit thermostat or
the start/st
op
cycle
.
Per
sona
l
Pro
tec
tiveEqui
pme
nt:bef
ore
doing anything
on this product,
as
exp
lain
ed
in
this
man
ual.
Alw
ays
use
saf
ety
pre
cau
tions bef
ore
doing
any
maintenance on the unit
safet
y glasse
s
, gloves
,
safety shoes , safety clothe
s
a.
Sys
tem
This
man
ual
con
tai
ns
Ope
rati
ng
Data
,
Ele
ctri
cal
Data and Service Instructions for the refrigeration units
listed in Table 2-1. Also Table 2-1 charts some signifi-
cant differences between these models.
The
Supra
Multi-T
emp,
multipl
e
compa
rtment
refrig-
era
tion syste
ms offer
the versa
tili
ty
of
two
or three
compa
rtment
tempera
ture con
trol in
truck.
The Mu
lti-
Temp allows the shipper to ship frozen and perishable
com
mod
itiesin
the
sameloadundersep
araterefr
ige
ra-
tion control.
b.
Truc
k condens
ing units
The Supra 750Mt
_
, 850Mt
_
and 950Mt
_
mod
els
are
one piece condensing units designed for truck applica-
tionsava
ila
ble
for
R404arefr
ige
rant.They
are
equ
ipp
ed
with an
electric standby motor
.
The model/serial number plate is located inside of
the uni
t
on
the fram
e
as shown in Figu
re
2-1 and
Figure 2-2.
fixed on
the frame
fixed on
the micro
The control system is a microprocessor controller
(Re
fertose
ction2.8).Oncethecontroller(
rem
oteCab
Command within the cab of the truck ) is set at the de-
sired temperature, the unit will operate automatically to
maintain the desired temperature within very close lim-
its. The control system automatically selects high and
lowspeedcoolingorhighandlowspeedheatingasnec-
essary to
mainta
in the
desire
d t
emper
ature.
The
mic
rop
roce
ssorcon
trol
ler
hasanautostart/st
op
feature. The auto start/stop operation provides auto-
ma
tic
cyclingofthedie
selengine,which
inturn
of
fersan
energy efficient alternative to continuous operation of
the
eng
ine
with
con
troloftemp
era
turebyalte
rnatecoo
l-
ing and heating of the supply air (evaporator outlet air).
A
remote
standb
y
recepta
cle
is
standa
rd
with
all
units.
c.
Multite
mpera
ture evapora
tors
The compartments of the Multi-Temp system are
equip
ped with
separa
te evapora
tors.
For Multi-Temp applications, single discharge and
double discharge evapora
tors are availabl
e.
The
eva
por
atorsare
dif
ferentin
size,cap
acityand
num
berof
fans(seeTab
le 2-2),butallworkonthe
sa
mepri
nciple
and use the sa
me single-phase 50Hz/60Hz fa
n
assembly. The electrical heaters vary according to the
type of condensing unit used and number o
f
compa
rtments. ( see Figure 2-
3 and
Figure 2-4 )
The evaporator is constructed with plastic profiles
design
ed
to meet
the spec
ific requiremen
ts
of
the
tran
sportind
ustry.
The
air
out
let
pro
filesare
des
ignedto
adjust to allow different airspeeds and velocity.
Inside the evaporator housing are one or more of
the following :
240 Volt Single phase backward curved impeller
which supplies high air volumes at low noise levels;
expansion valve; check valve; 12V hot gas solenoid;
12V liquid line solenoid
;12V wa
ter
dra
in heate
r;
electrical heater element; sensor ( defrost termination
sensor ); safety heating thermostat.
2-2 62--611XX--2
0 (03/04
)
Table 2-1 Condensers Model Chart
R-404A
Model
L
B KG
e Compressor Standb
y Moto
r
SUPRA 750Mt
_
05K 2 Cylinders
SUPRA 850Mt
_
13.
6 6
.
2 C
T3-44TV
05K 4 Cylinders
refer
to
section
2.5
c.
SUPRA 950Mt
_
17.
2 7.
8 CT3-69TV 05
G
6 Cylinder
s
.
.
Table 2-2 Evaporators Model Chart
Model Discha
r
e Le
n th PowerWatts Number of fa
ns
MTS 70
0 H0
6 Single 70
0 mm 60
0
1
MTS 70
0 H1
2 Single 70
0 mm 1200
1
MTS 70
0 H2
4 Single 70
0 mm 2400
1
MTS 1100 H1
2 Single 1100 mm 1200
2
MTS 1100 H2
4 Single 1100 mm 2400
2
MTS 1450 H1
2 Single 1450 mm 1200
2
MTS 2200 H2
4 Single 2200 mm 2400
3
MTD 70
0 H2
4 Double 70
0 mm 2400
1
MTD 1100 H2
4 Double 1100 mm 2400
2
MTD 1450 H2
4 Double 1450 mm 2400
2
MTD 2200 H2
4 Double 2200 mm 2400
3
Table 2-3 Evaporators designation
M
T
S
0
7
H
2
4
3
A
3
b
b
b
POWER:
HEAT /
b
b
b
b
06: 600W
b
:
A: Electrical
b
ENTILA-
NOMINAL
SIZE:
12:
1200W
-
460V 3Ph
FAN
MOTORS
UNIT:
TION :
07: 700mm
AIR FLOW:
H: Hi h ai
r
15: 1500W
-
RANT:
B:
Electrical
230V 1Ph
TENSION:
MULTI
M: Maxima
T: Truck
D: Dual
Discharge
09:
900mm
flow
20: 2000W
24: 2400W
3: R404A
C: Hot gas
1:
12
VDC
V: Vector
S:
Single
11:
1100mm
L:
Low
air
flow
30:
3000W
4: R22
D: Hot gas /
2:
24
VDC
3: 220 VAC
Discharge
:
mm
22: 2200mm
38:
3800W
:
ec rca
3Ph
4: 400 VAC
40: 4000W
E:
Hot
gas
/
Electrical 230V
45: 4500W
1Ph
2-3
1. Muffler
2.
Engin
e (refe
r to T
able
2-1)
3.
Compre
ssor (
refer to
T
able
2-1)
4.
Alte
rna
tor
(12
V)
5.
Ele
ctri
c Sta
ndb
y Mo
tor
6.
Fit
tin
gs
for
Mt_evaporators
7.
Compre
ssor p
ressure
regula
ting va
lve (CP
R)
8.
Fil
ter drie
r
9.
Con
den
ser
10.
Coo
lant bott
le
Figure 2-
1
Supra
750Mt
/
850Mt
Models
TOP VIEW
1.
2.
3.
4.
7.6.5.
8.
9.
10.
2-4 62--611XX--2
0 (03/04
)
1. --
Batte
ry
2. + Micro
3.
Fuel lines
4. + Batter
y
5.
Seri
al/M
ode
l p
lat
e
6.
Fuel fil
ter
7.
Spe
ed &
Run
sol
eno
id
8.
Oil
fil
ter
9.
Oil gaug
e
10.
Air cl
ean
er (d
ry ai
r type
)
1
1.
Recei
ver
sight
glass
12.
Moistu
re
indic
ation
sight
glass
13.
Rec
eiv
er
14.
Ele
ctri
cal
box
CURBSIDE VIEW
ROADSIDE VIEW
1.
2.
3.
4.
5.
6.
7.
8.
10.
1
1.
13.
14.
9.
12.
2-5
Figure 2-
2
Supra
950Mt
Model
TOP VIEW
1.2.3.4.5.
1. Muffler
2.
Engine
(refer to
T
able
2-1)
3.
Compre
ssor (r
efer to
T
able
2-1)
4.
Alte
rna
tor
(12
V)
5.
Ele
ctri
c sta
ndb
y mo
tor
6. Fitti
ng
for
Mt_evaporators
7.
Compre
ssor pre
ssure re
gulati
ng val
ve (CPR
)
8.
Fil
ter
drie
r
9.
Con
den
ser
10.
Coo
lant bot
tle
7.
8.
9.
10.
6.
2-6 62--611XX--2
0 (03/04
)
CURBSIDE VIEW
ROADSIDE VIEW
1. --
Batt
ery
2. + Micro
3.
Fuel lines
4. + Ba
tte
ry
5.
Seri
al/M
ode
l p
late
6.
Fuel fil
ter
7.
Sol
eno
id
8.
Oil
fil
ter
9.
Oil gaug
e
10.
Air c
lea
ner (
dry a
ir typ
e)
1
1.
Receiv
er
sight
glasse
s
12.
Moisture
indica
tion
sight
glass
13.
Rec
eiv
er
14.
Ele
ctri
cal
box
15.
Air
clean
er -
-
Silent version
16.
Muffle
Silent version
15.
16.
1.
2.
3.4.5.
6.
7.
8.9.10.
1
1.
12.
13.
14.
Silent version
Standard version
2-7
1.
Eva
por
ator
Coi
l
2. Turbi
ne f
an (
1, 2
or 3
accord
ing to
the model)
3. RAS Sens
or
4. Coi
l
5. Heat
ers
6.
Exp
ans
ion
val
ve
7.
Pressure
tap
Figure 2-3
Evapor
ator MTS m
odel
1.
2.
3
. 4.
5.
6.
7.
2-8 62--611XX--2
0 (03/04
)
1.
Evap
ora
tor
Coi
l
2. Turbin
e fa
n (1
, 2 o
r 3
accord
ing to
the model)
3.
RAS
Sensor
4. Coil
5. Heate
rs
6.
Expa
nsi
on
val
ve
7.
Pressure
tap
Figure 2-4
Evapor
ator MTD m
odel
1.
2.
3.
4.
5.
6.7.7.
2-9
Figure 2-
5
Elect
rical
box
1.
Cap
aci
tors
2.
Stan
dby m
otor c
ont
acto
r (MC)
3.
Moto
r Over
loa
d rel
ay (M
OL)
4.
Man
ual
run
/stop
swi
tch
5.
EHR
con
tact
ors
6.
Mai
n fu
se (
80
amp
s )
7. Buzz
er
8.
Cap
aci
tors
9.
Rel
ay a
nd
Fuse
boa
rd
10.
Regul
ation
Bypass
RBPR
relay
( Supra 850 Mt
_
only )
1.
7.
8.
8.
9.
10.
2.
3.
4.
6.
5.
2-1
0 62--611XX--2
0 (03/04
)
This control
relay board
allows a better
maintenance using pin
connections (
TP01 to TP
17 ).
With a multimet
er
, an
output
voltag
e can be
measur
ed,
pin by pin, to check
relay
s power
supply.
Figure 2-6
Control r
elay boar
d view
FUSE IDENTIFICATION
Rep
. Item Amps
F
1 Main fuse 60
A
F
2 RC
R fuse
5
A
F
3 Ru
n Rela
y fuse 15
A
F
4 Heater rela
y fuse 10
5 Spee
d rela
y fuse
5
A
F
6 Unloader fuse
3
A
F7 Defrost damp
er relay fu
se 7.5
A
F8 Electric fan motor fuse 7.5
A
F9 Electric fan motor fuse 7.5
A
F10 Electric fan motor fuse 5 A
uel pump fuse
3
A
RELAY IDENTIFICATION
Rep
. Item
SSR Starter soleno
id rela
y
CAR Ca
pacitor alternat
or rela
y
CR1
,2,3 Cool
rel
ay (
1st
, 2n
d ,
3rd
comp
art
men
t)
EHR
1,2
,3
Ele
ctr
ical heat rel
ay
(1st , 2nd , 3rd compartment)
FLR Flashi
ng rel
ay
UFR Unload
er front relay
FHR
Fuel heater relay (optio
n)
S
R Spee
d rela
y
HGR
1,2
,3
Hot
gas
rel
ay
(1st , 2nd , 3rd compartment)
DER Diesel electric rela
y
RR1
,2,3 Run
rel
ay
(1s
t ,
2nd
, 3
rd
comp
art
men
t)
GPR Gl
ow plug rel
ay
R
CR Run control rel
ay
MHR Main heat rel
ay
RBPR Regu
lat
ion
by-
-pass
rel
ay
2-11
2.2 EN
GINE DATA
Engine Model
CT3-44T
V (D722) CT3-69TV (D1105
)
Used on
SUPRA
750Mt
/
850Mt
SUPRA 950Mt
Displacemen
t 71
9 cc (43.
9 in3) 1105 cc (67.
5 in3)
No. Cylinder
s
3
3
Horsepowe
r 9.
3 kw (12.
5 hp
) @2400rpm 14.9 kw (2
0 hp
) @2400rpm
Weigh
t 63 kg (139 lbs) 89 kg (214 lbs)
Coolant Capacity 3,7 liters (3.9 U.S. quarts) 4,7 liters (5.5 U.S. quarts)
Oil
Capac
ity
withou
t
oil bypass kit
8,1 liters (8.5 U.S. quarts) 9,4 liters (11 U.S. quarts)
Oil Capacity with oil
bypass kit
*
8,9 liters (9.4 U.S. quarts
) no
t availabl
e
Operating
 High
SUPRA
750Mt
_
: 2200 rpm
SUPR
A
850
Mt_: 2400 rpm
2250
rpm
pee s
Low 1800 rp
m 1800 rp
m
Injection Settin
g 14
0 to 15
0 kg/c
m2(1991 to 2133 psi)
*
Quantity includes oil bypass filter volume
2.2.1 Cooling circuit
Water temperature sensor (WTS)
This a
thermisto
r type
senso
r
locate
d on
the engine
cylinder head which measures the temperature of the
coolant.
Unit shuts down :
Ambien
t < 50_C (120
_
F)
if temperature exceeds 110
_
C (230
_
F)
Ambien
t > 50_C (120
_
F)
if temperature exceeds 116
_
C (240
_
F) or
if temperature stays between 110
_
C (240
_
F) and
1
16_C (230
_
F) for 5 min.
Lubrification System
Oil pressure switch (OP)
Closes a
bove
1.05 bars (1
5 psi)
¦
0.2 (3 psi)
LubeOilViscosity:(APIclassi
fic
ationCDminimum)
Outdoor Temperatur
e SA
E
Centigrad
e Fahrenheit SA
E
0_C Belo
w 32_ 0W30
0_to 25
_
C
32_to 77
_
F
10W30
or
15W40
Over +25
_
C Over 77_F
10W30
or
15W40
2.3
COMPR
ESSOR
REFER
ENCE
DA
TA
Model
05G 05K2 05K4
Displacement
600 cc /
664 cc
(36.6 /
40.5 in
3
)
400 cc
24.4 in
3
)
200 cc
(12.2 in
3
)
No. Cylinder
s
6
4
2
No. Unloader
s
1
1
0
Weight
75
kg
(165 lbs)
49 kg
(108 lbs)
38 kg
(84 lbs)
Oil Charge
3.8
L
(6.90 pts)
2.6 L
(4.75 pts)
1.9 L
(3.45 pts)
APPROVED COMPRESSOR OIL
Refrigerant 05
G 05
K 
-40
4
o rctc 68
2.4
REFRI
GERA
TION
SYSTE
M DATA
a.
Defr
ost T
imer
1h30, 3h, 6h, or 12 hours
b.
Defr
ost Therm
ostat
Ope
ns
at:
10
_
¦
3_C (50
_
F¦5_F)
Clo
ses
at:
7
_
¦
3_C (45
_
F¦5_F)
2-1
2 62--611XX--2
0 (03/04
)
c.
High Pres
sure Cutout S
witch (HP
1)
Cu
tout at: 32.7¦0.7 bars (469
¦
10 psig)
Cut-in at: 24.6¦0.7 bars (350
¦
10 psig)
d.
High Press
ure Cutout Swit
ch (HP2)
Cu
tout at: 27.5¦0.7 bars (393
¦
10 psig)
Cut-in at:
23¦0.7 bars (330
¦
10 psig)
e.
Refr
igerant
charge
Refer to Table 2-1.
f.
Com
pre
ssorPr
ess
ureRegula
tingValve(CPR)in
heat mode
CPR Setting
MODEL
bar
s psig
SUPRA 750Mt
_
1
.
7 24,5¦1
SUPRA 850Mt
_
1.8 26¦1
SUPRA 950Mt
_
1
.
9 27,5¦1
g.
Thermos
tatic Expans
ion Valve superhea
t
Setting at ---20
_
C (0_F) box temperature:
MODEL SETTIN
G
All
Units
8
to
10_F (4 to 6
_
C)
h. Com
pre
ssor
Dis
cha
rge Temp
era
ture Sen
sor
(CDT)
Unit shuts down at :
154_C (310
_
F) for 3 minutes or 177
_
C (350
_
F)
i.
Bypas
s pre
ssure
switch
(if us
ed)
Open
s at :
1.4 b
ar (2
0 ps
ig)
Clo
ses
at:
1.9
bar
(20
psi
g)
2.5
ELE
CTR
ICAL DATA
a.
Evapor
ator Fa
n Motors
Die
sel
high
spee
d
Die
sel
low
spee
d
Voltage 23
0
V 23
0
V
Frequency 60 HZ 50 HZ
Speed 2738 rp
m 2541 rp
m
Power 27
2
W 19
5
W
Current 1.19
A 0.86
A
No maintenanc
e:
Lubric
ated for
life.
b.
Genera
tor (Single phase alter
nator)
Power
SUPRA
750Mt
_
/850Mt
_
: 1.5
kW
SUPRA 950Mt
_
: 2 k
W
Volts 24
0 va
c
Speed 3000
/ 3600 rp
m
Cosϕ1
GENERATOR RESISTANCE VALUES (see section 2.10)
Units
Voltage
and
frequency
Stator
Auxili
ary
coil
Stud 5 & 2
Stator
Main coil
Stud 6 & 1
Stud 3 & 4
Rotor
Auxili
ary
coil
Rotor
Main coil
Capacitors
450V
Diodes
( Qty:2 )
Supra 750Mt
_
/850Mt
_
 110/220V
-- 50/60Hz
 12.2
Ω
1.7Ω1.1Ω5.6Ω12µF
6A
Supra 950Mt
_
1
10/
20V
-- 50/60Hz
 6.15
Ω
0.87
1.42
Ω
6.97
Ω16µ
F
1000V
2-13
c.
Standby
motors
Rotation speed : 1760 rpm @ 60 hz / 1500 rpm @
50hz
750 Mt
850 Mt
950 Mt
d.
Alte
rnator
:
50 amps
e.
Standby
Motor Ov
erload
The function of the motor overload is to protect the
standby motor against high amperage draw. The over-
load provides an adjustable knob to set the maximum
amperage draw.
Themo
torover
loadisalsoequippedwitharesetbu
t-
ton. This button has three positions : automatic reset,
manual and test. In the application the button should
remain in the automatic reset position.
STANDBY MOTOR OVERLOAD
SETTING
MODEL
400
V 230V 
SUPRA 750Mt
_
1
1
A 19.2
SUPRA 850Mt
_
1
1
A 20.5
SUPRA 950Mt
_
2
0
A 34.6
A
2.6 TORQUE VALUES
Assembl
y kg-m ft-l
b
Power Tray to Fram
e 5.
5 40
Standby Moto
r to Powe
r Tray 5.
5 40
Engin
e to Powe
r Tray 7.
0 50
Compresso
r to Powe
r Tray 5.
5 40
Standby Moto
r Pulley 4.
5 32
Engin
e Pulley 3.
0 22
Compresso
r Pulley 3.
0 22
Evaporato
r Fa
n Moto
r 1.
8 13
Evaporato
r Fa
n Grille 1.
0
7
Condenser Coil to Chassi
s 1.
0
7
Tensioner to Powe
r Tray 3.
0 22
Engin
e Suppor
t 5.
5 40
Run
& Spee
d Solenoid
s 1.
0
7
Condenser Fa
n Blad
e 2.
5 18
Engin
e Clutch 5.
5 40
2-1
4 62--611XX--2
0 (03/04
)
2.7 SA
FETY DEVICE
S
System components are protected from damage caused by unsafe operating conditions by automatically shutting
down the unit when such conditions occur. This is accomplished by the safety devices listed in Table 2-4.
Table 2-4 Safety Devices
Unsaf
e Conditions Safety Device
1. Low engi
ne lubricating oil pressu
re
Oil pressure safety sw
itch OP automatic rese
t
2.
High eng
ine
coo
ling wate
r
temp
erat
ure Water
temp
era
ture
sen
sor
WTS
3.
Excess
ive curre
nt draw by
glow p
lug cir
-
cuit , control circuit or starter solenoid (SS)
Fuse (F1)
4. Excessive current dr
aw
by controll
er Fuse (F2)
5. Excessive cu
rre
nt
draw by contr
ol circu
it
Fuse (F3
)
6.
Excess
ive curre
nt draw b
y speed
control
solenoid
Fuse (F4)
7.
Excess
ive
compre
ssor
discha
rge p
ressure
High
pressu
re cu
tout s
witch
HP
automa
tic re
set
8.
Excess
ive com
presso
r discha
rge temp
era-
ture
Compressor discharge temperature sensor CDT
9.
Excess
ive cu
rrent dra
w by e
vapor
ator fan
motors
Fuses (F21, F22, F23)
10. Heater over temperature High temperature klixon
1
1. Excessive current dr
aw
by heaters Fuses (F
14
to F19, F30
to F32)
2-15
2.8
MIC
ROP
ROC
ESS
OR
CON
TRO
LLER
1. Display
2. Up and down arrow keys
3. Function change key
4. Run/Stop switch
5. Road key
6. Comp. 1 ON/OFF switch
7. City speed key
8. Comp. 2 ON/OFF switch
9. Manual defrost key
10. Comp. 3 ON/OFF switch
11. Buzzer off key
12. Standby key
13. Pretrip key ( not used )
14. Auto-start/Stop key
15. Unit data key
16. Fault alarm led
17. Enter key
1.
3.
2.
17.
4.
5.
7.
9.
1
1.
12.
13.
14.
15.
16.
6.
8.
10.
Figure 2-
7
Cab C
ommand
2.8.1 Introduction
The microprocessor controller is housed in the con-
trolbox.Thisco
ntrollerconsistsof 2co
ntr
ol boardsan
d
a relay module :
1.
The Processor Board includ
es the
microp
rocess
or,
program memory, and necessary input/output cir-
cuitry to interface with the unit.
2.
The
Rel
ay
Mod
ule
con
tains repl
ace
able rel
ays
,
diodes and fuses along with the wiring harness.
The Cab Command is remote mounted in the
truck.
The Cab Command includes the LCD display, keypad
and keypad interface (see Figure 2-7).
CAUTION
Unde
rnocir
cum
sta
ncesshoul
d
anyo
ne
attempt to repair the Logic or Display
Boards!
Shoul
d a prob
lem devel
op
with the
se
components, contact yo
ur nearest
Carrier Transicold dealer fo
r
replacement.
2-1
6 62--611XX--2
0 (03/04
)
The Carrier Transicold microprocessor controller in-
corpora
tes
the following features :
a. Controlssupplyor
returnair
temperat
ureto
tightli
m-
itsbypro
vid
ing
refr
ige
rationcon
trol,heatanddefrost
to ensure conditioned air delivery to the load.
b. Dualindependentreadoutsofsetpointandsupplyor
return air
tempera
tures.
c.
Dig
ital readout and abili
ty
to sele
ct data. Refer to
Table 2-5 for Function Codes and Table 2-7 for Unit
Data.
d.
For alarm digital display iden
tificati
on Refer
to
Table 2-8.
e. A se
lf-test check on prog
ram memo
ry and data
mem
ory.The
sel
f-testis
exe
cutedeachtime
the
sys-
tem is switched from “Stop” to
“Start.” Errors, if
any
,
shall be indicated on the display as a ERR.X, where
X is a number corresponding to the number of the
test. The unit shall display this error for 5 seconds
and then reset the micro.
ERROR
CAUSE
ERR.1
ERR.2
ERR.3
Processor failure
Check chip installation or replace
microprocessor
ERR.4 Display board to logic board
communication failure.
This can be caused by a defec-
tive ribbon cable or ribbon cable
not plugged in properly.
2.8.2 Keypad
Thekeyp
adhas12keyswhichwillallowtheope
rat
or
to initiate various functions, display operating data and
change operating parameters.
1.
Display window : shows set--point, box temperature,
operating mode, alarm displays, as well as data on the
unit itself (battery voltage, water temperature etc.).
Function Change key
The
 func
tion
cha
nge
key
 is used to
displ
ay
the operating parameters. Each
time this key is pressed the display will
adv
anceto
the
nextpara
mete
r.
Thiskey
,
in conjunction with the
up/down arrow
and
ente
r
key
s
, will allow the user to
change the parameters.
Arrows key
The UP ARROW and DOWN ARROW
keys are
used to
alter the set-
-poin
t.
Presstheup
ordownarrowkeys
un
tilthe
desired se
tpoint
is displayed on
the
left-
-hand
side of
the
dis
play win
dow
.
When
the
correct
set-
-point i
s
displ
ayed,
pre
ss the
ENT
ER key
to confi
rm
the
setting.
The UP ARROW and DOWN ARROW
keys are also used to change the unit
functions and scroll through th
e
FUNCTION and
UNIT
DA
TA screens.
Enter key
The ENTER key confirms changesmade
to unit operatio
n.
It must
be
pre
ssed to
cha
nge the
setp
oint afte
r
using the arrow keys to adjust it. If the
ENTER key is not pressed, the setpoint
wi
ll
revert
to
the previous
ly enter
ed
setting.
The ENTER key must also be pressed
whene
ver a
FUNCTION setting is being
altered. If this key is not pressed, the
func
tion
willrevertto
its
pre
vioussett
ing
.
RUN/STOP switch
The ma
in unit RUN/STOP swit
ch
contro
ls the unit operatio
n. When
switched to the Run (I) position, the unit
wi
ll
sta
rt
in
the opera
ting mo
de last
entered (Road or Standby). The
set-
-poin
t
will be
at
the
last set-
-poin
t
entered on the keypad.
Road key
The ROAD key puts the unit into Road
(or engine) operation when the unit has
beenpre
vio
uslyope
ratedin
the
Stan
dby
mode.
City Speed key
The CITY SPEED key toggles the unit
be
twe
en high speed and low speed
(diesel mode). When City Speed issele
cte
d,
the unit
wi
ll run only
in low
speedexc
ept
dur
ing
defr
ost
cyc
les.This
feature is useful in areas where noise is
restricted.
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