Trane Technologies Thermo King Heat King HK450 HO User manual

Revision B
November 2019 TTKK 5566111177--66--OOPP--EENN
Heat King
HK450 HO and HK450 MAX
Operator’s Manual

2TK 56117-6-OP-EN
Introduction
This man al is p blished for informational p rposes only and the
information f rnished herein sho ld not be considered as all-incl sive or
meant to cover all contingencies. If more information is req ired, cons lt
yo r Thermo King Service Directory for the location and telephone n mber
of the local dealer.
TThheerrmmoo KKiinngg’’ss wwaarrrraannttyy sshhaallll nnoott aappppllyy ttoo aannyy eeqq iippmmeenntt wwhhiicchh hhaass
bbeeeenn ““ssoo iinnssttaalllleedd,, mmaaiinnttaaiinneedd,, rreeppaaiirreedd oorr aalltteerreedd aass,, iinn tthhee
mmaann ffaacctt rreerr’’ss jj ddggmmeenntt,, ttoo aaffffeecctt iittss iinntteeggrriittyy..””
MMaannuuffaaccttuurreerr sshhaallll hhaavvee nnoo lliiaabbiilliittyy ttoo aannyy ppeerrssoonn oorr eennttiittyy ffoorr aannyy
ppeerrssoonnaall iinnjjuurryy,, pprrooppeerrttyy ddaammaaggee oorr aannyy ootthheerr ddiirreecctt,, iinnddiirreecctt,, ssppeecciiaall,,
oorr ccoonnsseeqquueennttiiaall ddaammaaggeess wwhhaattssooeevveerr,, aarriissiinngg oouutt ooff tthhee uussee ooff tthhiiss
mmaannuuaall oorr aannyy iinnffoorrmmaattiioonn,, rreeccoommmmeennddaattiioonnss oorr ddeessccrriippttiioonnss
ccoonnttaaiinneedd hheerreeiinn.. TThhee pprroocceedduurreess ddeessccrriibbeedd hheerreeiinn sshhoouulldd oonnllyy bbee
uunnddeerrttaakkeenn bbyy ssuuiittaabbllyy qquuaalliiffiieedd ppeerrssoonnnneell.. FFaaiilluurree ttoo iimmpplleemmeenntt tthheessee
pprroocceedduurreess ccoorrrreeccttllyy mmaayy ccaauussee ddaammaaggee ttoo tthhee TThheerrmmoo KKiinngg uunniitt oorr
ootthheerr pprrooppeerrttyy oorr ppeerrssoonnaall iinnjjuurryy..
There is nothing complicated abo t operating and maintaining yo r Thermo
King nit, b t a few min tes st dying this man al will be time well spent.
Performing pre-trip checks and enro te inspections on a reg lar basis will
minimize operating problems. A reg lar maintenance program will also help
to keep yo r nit in top operating condition. If factory recommended
proced res are followed, yo will find that yo have p rchased the most
efficient and dependable temperat re control system available.
All service req irements, major and minor, sho ld be handled by a Thermo
King dealer for fo r very important reasons:
• They are eq ipped with the factory recommended tools to perform all
service f nctions
• They have factory trained and certified technicians
• They have gen ine Thermo King replacement parts
• The warranty on yo r new nit is valid only when the repair and
replacement of component parts is performed by an a thorized Thermo
King dealer

TK 56117-6-OP-EN 3
Customer Satisfaction Survey
Let yo r voice be heard!
Yo r feedback will help improve o r man als. The s rvey is accessible
thro gh any internet-connected device with a web browser.
Scan the Q ick Response (QR) code or click or type the web address https://
tranetechnologies.iad1.q altrics.com/jfe/form/SV_2octfSHoUJxsk6x?Q_
CHL=qr&Q_JFE=qdg to complete the s rvey.
IInnttrroodd ccttiioonn

4TK 56117-6-OP-EN
SSaaffeettyy PPrreeccaa ttiioonnss .................................................................................... 66
Danger, Warning, Ca tion, and Notice . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
BlowerFan............................................ 6
A tomaticStart ........................................ 7
HotS rface............................................ 7
California Proposition 65 Warning Nameplate . . . . . . . . . . . . . . . 8
General Safety Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
UUnniitt DDeessccrriippttiioonn.......................................................................................... 99
Unit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Engine.................................................... 11
HMI Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Protection Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MMaann aall PPrreettrriipp IInnssppeeccttiioonn .. .. .. ........ ........ .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. .. .. 1133
Before Starting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
OOppeerraattiinngg IInnssttrr ccttiioonnss.. .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. .. .......... .. .. .. .. .. ........ .. 1177
HMI Display Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
HMI Display Icons and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 19
HMI Display Keys and Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . 20
T rning the Unit OFF and OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Standard Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Changing the Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Starting the Diesel Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Alarms.................................................... 25
Alarm Code Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Alarm Code Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table of Contents

TK 56117-6-OP-EN 5
Displaying Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Clearing Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table of Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
LLooaaddiinngg aanndd EEnnrroo ttee IInnssppeeccttiioonnss .. .. .......... .. .. .. .. .. .. ........ .. .. .. .. ........ 3300
Pre-Loading Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Enro te Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SSppeecciiffiiccaattiioonnss .. .. .. ........ .. .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. .. .......... .. .. .. .. 3322
Engine Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Belt Tension. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Unit Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Electrical Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Electrical F ses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
SSeerriiaall NN mmbbeerr LLooccaattiioonnss .. .. .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. .. ........ .. .. .. .. ...... 3355
MMaaiinntteennaannccee IInnssppeeccttiioonn SScchheedd llee .. .. .. .. .. ........ .. .. .. .. .. ........ .. .. .. .. .... 3377
WWaarrrraannttyy........ .. .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. .... 3399
EPA and ARB S pplemental Emissions Warranty
Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
TTrroo bblleesshhoooottiinngg .. .. .. .. .. .. .......... .. .. .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. ........ .. .. .. .. .. .. 4400
EEmmeerrggeennccyy CCoolldd LLiinnee .. .. .. .. .. ........ .. .. .. .. .. ........ .. .. .. .. .......... .. .. .. .. .. ........ .. .. 4433
TTaabbllee ooff CCoonntteennttss

6TK 56117-6-OP-EN
Safety Precautions
anger, Warning, Caution, and Notice
Thermo King®recommends that all service be performed by a Thermo King
dealer and to be aware of several general safety practices.
Safety advisories appear thro gho t this man al as req ired (refer to
examples below). Yo r personal safety and the proper operation of this nit
depend pon the strict observance of these preca tions.
DDAANNGGEERR
EExxaammppllee!!
Indicates an imminently hazardo s sit ation which, if not avoided, will
res lt in death or serio s inj ry.
WWAARRNNIINNGG
EExxaammppllee!!
Indicates a potentially hazardo s sit ation which, if not avoided, co ld
res lt in death or serio s inj ry.
CCAAUUTTIIOONN
EExxaammppllee!!
Indicates a potentially hazardo s sit ation which, if not avoided, co ld
res lt in minor or moderate inj ry and nsafe practices.
NN TTIICCEE
EExxaammppllee!!
Indicates a sit ation that co ld res lt in eq ipment or property-damage
only accidents.
Safety ecals
Blower Fan
Be aware of the Fan ca tion decal near the blower fan.

TK 56117-6-OP-EN 7
Figure 1. Fan Warning
Automatic Start
Be aware of the A tomatic Start warning decal located inside the nit.
Figure 2. Automatic Start
Hot Surface
Be aware of the Hot S rface ca tion decal inside the nit.
SSaaffeettyy PPrreeccaa ttiioonnss

8TK 56117-6-OP-EN
Figure 3. Hot Surface
California Proposition 65 Warning Nameplate
Figure 4. P65 Warning Nameplate
General Safety Practices
DDAANNGGEERR
RRiisskk ooff IInnjj rryy!!
Keep hands and loose clothing clear of fans and belts at all times when the
nit is operating with the doors open.
WWAARRNNIINNGG
RRiisskk ooff IInnjj rryy!!
Do not apply heat to a closed cooling system. Before applying heat to a
cooling system, drain it. Then fl sh it with water and drain the water.
Antifreeze contains water and ethylene glycol. The ethylene glycol is
flammable and can ignite if the antifreeze is heated eno gh to boil off the
water.
CCAAUUTTIIOONN
SShhaarrpp EEddggeess!!
Exposed coil fins can ca se lacerations. Service work on the evaporator or
condenser coils is best left to a certified Thermo King technician.
SSaaffeettyy PPrreeccaa ttiioonnss

TK 56117-6-OP-EN 9
Unit escription
Unit Overview
Heat King Cargo Heaters are one-piece diesel powered heating nits
designed for installation onto the front wall of trailers and intermodal
containers to provide freeze protection for temperat re sensitive cargo. A
remote mo nted HMI Controller operates the nit and displays nit
information. There are two Heat King models:
• HK450 HO (High O tp t 36,000 BTU)
• HK450 MAX (50,000 BTU)
HHKK445500 HHOO heat the cargo area by ro ting heated engine coolant thro gh the
radiator coil. A blower in front of the coil transfers the heated air into the
cargo box.
HHKK445500 MMAAXX provides additional heating capacity by incorporating an
exha st system heat exchanger. Engine coolant is ro ted thro gh the heat
exchanger and then into the radiator coil. A blower in front of the coil
transfers the heated air into the cargo box.
Figure 5. Front view HK450 MAX shown, HK450 HO similar

10 TK 56117-6-OP-EN
Figure 6. Engine Compartment Components
1. TG-VII Base Controller
2. Fuel Filter
3. Oil Fill Cap
4. Engine Thermostat
5. Exhaust Muffler / Heat Exchanger HK450 MAX units only.
Exhaust Muffler (not shown) HK450 HO units only.
6. Alternator
7. Battery Box and Hold Down Bracket
8. Maintenance On/Off Switch
9. Oil Drain Plug
10. Oil Filter
11. Oil Level Dipstick
12. Air Filter
UUnniitt DDeessccrriippttiioonn