Generac Power Systems MAC 550F User manual
SAVE THIS MANUAL FOR FUTURE REFERENCE
MAC 550F
Flameless Air Heater
Owner’s Manual
MODEL NUMBER: _________________________
SERIAL NUMBER: _________________________
DATE PURCHASED:________________________
Register your Generac Mobile product at:
WWW.GENERACMOBILE.COM
800-926-9768
001663
ii Owner’s Manual for Flameless Heater
:$51,1*
&DOLIRUQLD3URSRVLWLRQ(QJLQHH[KDXVWDQGVRPH
RILWVFRQVWLWXHQWVDUHNQRZQWRWKHVWDWHRI&DOLIRUQLD
WRFDXVHFDQFHUELUWKGHIHFWVDQGRWKHUUHSURGXFWLYH
KDUP
:$51,1*
&DOLIRUQLD3URSRVLWLRQ7KLVSURGXFWFRQWDLQVRU
HPLWVFKHPLFDOVNQRZQWRWKHVWDWHRI&DOLIRUQLDWR
FDXVHFDQFHUELUWKGHIHFWVDQGRWKHUUHSURGXFWLYH
KDUP
Owner’s Manual for Flameless Air Heater iii
Table of Contents
Section 1 Introduction and Safety
Introduction ..................................................................1
Safety Rules .................................................................1
General Hazards ...........................................................2
Explosion and Fire Hazards ........................................2
Trailer Hazards .............................................................2
Battery Hazards ............................................................3
Section 2 General Information
Component Locations .................................................5
Emissions Information ................................................6
Engine Oil Recommendations ....................................6
Coolant Recommendation ...........................................6
Fuel System ..................................................................6
Hydraulic Oil .................................................................7
Trailer Towing Guidelines ...........................................7
Wheel Chock Guidelines .............................................7
Informational Decals ....................................................7
Controller ......................................................................8
Monitoring, Diagnostic, and Protective Features .........8
Section 3 Operation
Before Starting Engine ................................................9
Pre-start Checklist .......................................................9
Engine Oil Check .........................................................9
Hydraulic Oil Check .....................................................9
Engine Coolant Check .................................................9
Battery Check ..............................................................9
Engine and Heater Startup ........................................10
Adjusting Heater Output ............................................11
AUTO Mode ..............................................................11
MANUAL Mode ..........................................................11
Heater and Engine Shutdown ...................................11
Section 4 Maintenance
Maintenance Tasks ....................................................13
Daily Walk Around Inspection ...................................13
Check Engine Oil Level .............................................13
Drain the Oil ..............................................................13
Adding Coolant ..........................................................14
Maintenance Schedule ..............................................14
Engine Maintenance Schedule ..................................15
Other Maintenance Checks .......................................16
Battery Inspection ......................................................17
Battery Installation and Replacement ........................17
Section 5 Troubleshooting
General Troubleshooting Guide ...............................19
Digital Controller Status Messages ..........................21
Section 6 Installation Diagrams and Service
Log
Engine Harness (1 of 3) .............................................23
Engine Harness (2 of 3) .............................................24
Engine Harness (3 of 3) .............................................25
Trailer Wiring Harness ...............................................26
Service Log .................................................................27
iv Owner’s Manual for Flameless Air Heater
This page intentionally left blank.
Owner’s Manual for Flameless Air Heater 1
Introduction and Safety
Section 1 Introduction and Safety
Introduction
Thank you for purchasing a Generac Mobile Products
LLC product. This unit has been designed provide high-
performance, efficient operation, and years of use when
maintained properly.
The MAC 550F flameless air heater is designed and built
for sustained, reliable heat production in industrial
operating conditions and environments. The MAC 550F
is built to withstand rough and frequent handling.
The unit is mounted on a trailer that has forklift access
and chain attach points on both sides. The fully enclosed
design protects the operating components, allowing all-
weather storage and operations. .
If any section of the manual is not understood,
contact your nearest Independent Authorized
Service Dealer (IASD), or contact Generac Customer
Service at
1-800-926-9768, or www.generacmobile.com with any
questions or concerns.
The owner is responsible for proper maintenance
and safe use of the equipment.
SAVE THESE INSTRUCTIONS for future reference.
This manual contains important instructions for the
heater that should be followed during installation,
operation and maintenance of the heater and
batteries. ALWAYS supply this manual to any
individual that will use this machine.
THE INFORMATION CONTAINED HEREIN WAS
BASED ON MACHINES IN PRODUCTION AT THE
TIME OF PUBLICATION. GENERAC RESERVES THE
RIGHT TO MODIFY THIS MANUAL AT ANY TIME.
Safety Rules
The manufacturer cannot anticipate every possible
circumstance that might involve a hazard. The
warnings in this manual, and on tags and decals
affixed to the unit are, therefore, not all inclusive. If
using a procedure, work method or operating
technique that the manufacturer does not
specifically recommend, verify that it is safe for
others. Also make sure the procedure, work method
or operating technique utilized does not render the
equipment unsafe.
Throughout this publication, and on tags and decals
affixed to the unit, DANGER, WARNING, CAUTION
and NOTE blocks are used to alert personnel to
special instructions about a particular operation that
may be hazardous if performed incorrectly or
carelessly. Observe them carefully. Their definitions
are as follows:
NOTE: Notes contain additional information important to
a procedure and will be found within the regular text of
this manual.
These safety warnings cannot eliminate the hazards
that they indicate. Common sense and strict
compliance with the special instructions while
performing the action or service are essential to
preventing accidents.
D
:$51,1*
&RQVXOW0DQXDO5HDGDQGXQGHUVWDQGPDQXDO
FRPSOHWHO\EHIRUHXVLQJSURGXFW)DLOXUHWR
FRPSOHWHO\XQGHUVWDQGPDQXDODQGSURGXFW
FRXOGUHVXOWLQGHDWKRUVHULRXVLQMXU\
'$1*(5
,QGLFDWHVDKD]DUGRXVVLWXDWLRQZKLFKLIQRWDYRLGHG
ZLOOUHVXOWLQGHDWKRUVHULRXVLQMXU\
:$51,1*
,QGLFDWHVDKD]DUGRXVVLWXDWLRQZKLFKLIQRWDYRLGHG
FRXOGUHVXOWLQGHDWKRUVHULRXVLQMXU\
&$87,21
,QGLFDWHVDKD]DUGRXVVLWXDWLRQZKLFKLIQRWDYRLGHG
FRXOGUHVXOWLQPLQRURUPRGHUDWHLQMXU\
2 Owner’s Manual for Flameless Air Heater
Introduction and Safety
General Hazards Explosion and Fire Hazards
Trailer Hazards
$VSK\[LDWLRQ5XQQLQJHQJLQHVSURGXFH
FDUERQPRQR[LGHDFRORUOHVVRGRUOHVV
SRLVRQRXVJDV&DUERQPRQR[LGHLIQRW
DYRLGHGZLOOUHVXOWLQGHDWKRUVHULRXVLQMXU\
'$1*(5
'$1*(5
)ZESBVMJD'MVJE*OKFDUJPO)JHIQSFTTVSFIJHIUFNQFSBUVSF
IZESBVMJDGMVJEDBOQJFSDFTLJOBOEDBVTFTFWFSFCVSOT%POPU
DIFDLGPSMFBLTXJUIIBOET4FFLJNNFEJBUFNFEJDBMBUUFOUJPOJODBTFPG
BDDJEFOU'BJMVSFUPQSPUFDUCPEZBDDPSEJOHMZXJMMSFTVMUJOEFBUIPSTFSJPVT
JOKVSZ
:$51,1*
'RQRWRSHUDWHWKLVXQLWZKLOHWUDQVSRUWLQJ
'RLQJVRFRXOGUHVXOWLQGHDWKRUVHULRXV
LQMXU\
:$51,1*
+HDULQJ/RVV+HDULQJSURWHFWLRQLV
UHFRPPHQGHGZKHQXVLQJWKLVPDFKLQH
)DLOXUHWRZHDUKHDULQJSURWHFWLRQFRXOG
UHVXOWLQSHUPDQDQWKHDULQJORVV
:$51,1*
0RYLQJ3DUWV.HHSFORWKLQJKDLUDQG
DSSHQGDJHVDZD\IURPPRYLQJSDUWV)DLOXUH
WRGRVRFRXOGUHVXOWLQGHDWKRUVHULRXVLQMXU\
:$51,1*
+RW6XUIDFHV:KHQRSHUDWLQJPDFKLQHGRQRW
WRXFKKRWVXUIDFHV.HHSPDFKLQHDZD\IURP
FRPEXVWLEOHVGXULQJXVH+RWVXUIDFHV
FRXOGUHVXOWLQVHYHUHEXUQVRUILUH
&$87,21
(TXLSPHQWRUSURSHUW\GDPDJH'RQRWEORFN
DLULQWDNHRUUHVWULFWSURSHUDLUIORZ'RLQJVR
FRXOGUHVXOWLQXQVDIHRSHUDWLRQRUGDPDJH
WRXQLW
&$87,21
D
8QLWGDPDJH'RQRWVWRSHQJLQHEHIRUHKHDWLQJ
XQLWLVFRROHG'RLQJVRFRXOGUHVXOWLQXQLWGDPDJH
'$1*(5
([SORVLRQDQG)LUH)XHODQGYDSRUVDUH
H[WUHPHO\IODPPDEOHDQGH[SORVLYH$GGIXHO
LQDZHOOYHQWLODWHGDUHD.HHSILUHDQGVSDUN
DZD\)DLOXUHWRGRVRZLOOUHVXOWLQGHDWK
RUVHULRXVLQMXU\
:$51,1*
5LVNRI)LUH8QLWPXVWEHSRVLWLRQHGLQD
PDQQHUWKDWSUHYHQWVFRPEXVWLEOHPDWHULDO
DFFXPXODWLRQXQGHUQHDWK)DLOXUHWRGRVR
FRXOGUHVXOWLQGHDWKRUVHULRXVLQMXU\
:$51,1*
7UDLOHUPXVWEHVHFXUHO\FRXSOHGWRWKHKLWFK
DQGFKDLQVFRUUHFWO\DWWDFKHG8QFRXSOHGRU
XQFKDLQHGWRZLQJFRXOGUHVXOWLQGHDWKRUVHULRXV
LQMXU\
:$51,1*
9HULI\XQLWLVSURSHUO\VHFXUHGZLWKZKHHO
FKRFNVDQGRQOHYHOJURXQG)DLOXUHWRGRVR
FRXOGUHVXOWLQGHDWKRUVHULRXVLQMXU\
:$51,1*
3URSHUW\RU(TXLSPHQW'DPDJH7LJKWHQZKHHOOXJ
QXWVDIWHUILUVWPLOHVWRIDFWRU\VSHFLILFDWLRQV
)DLOXUHWRGRVRFRXOGUHVXOWLQGHDWKVHULRXVLQMXU\
SURSHU\RUHTXLSPHQWGDPDJH
Owner’s Manual for Flameless Air Heater 3
Introduction and Safety
Battery Hazards
D
:$51,1*
:$51,1*
([SORVLRQ'RQRWGLVSRVHRIEDWWHULHVLQDILUH
%DWWHULHVDUHH[SORVLYH(OHFWURO\WHVROXWLRQFDQFDXVH
EXUQVDQGEOLQGQHVV,IHOHFWURO\WHFRQWDFWVVNLQRUH\HV
IOXVKZLWKZDWHUDQGVHHNLPPHGLDWHPHGLFDODWWHQWLRQ
D
:$51,1*
5LVNRIEXUQ'RQRWRSHQRUPXWLODWHEDWWHULHV
%DWWHULHVFRQWDLQHOHFWURO\WHVROXWLRQZKLFKFDQ
FDXVHEXUQVDQGEOLQGQHVV,IHOHFWURO\WHFRQWDFWV
VNLQRUH\HVIOXVKZLWKZDWHUDQGVHHNLPPHGLDWH
PHGLFDODWWHQWLRQ
:$51,1*
(QYLURQPHQWDO+D]DUG$OZD\VUHF\FOHEDWWHULHVDWDQ
RIILFLDOUHF\FOLQJFHQWHULQDFFRUGDQFHZLWKDOOORFDO
ODZVDQGUHJXODWLRQV)DLOXUHWRGRVRFRXOGUHVXOWLQ
HQYLURQPHQWDOGDPDJHGHDWKRUVHULRXVLQMXU\
4 Owner’s Manual for Flameless Air Heater
Introduction and Safety
This page intentionally left blank.
Owner’s Manual for Flameless Air Heater 5
General Information
Section 2 General Information
Component Locations
Table 1 - Heater Components
A Engine radiator F Hydraulic fluid reservoir tank
B Breakaway battery for trailer brakes G Hydraulic fluid breather/separator
C Diesel engine H Engine oil dipstick
D Hydraulic fluid filters J Air filter
E Hydraulic fluid fill K Engine fuel filters
001658
001657
F
B
A
K
D
Left Side Right Side
C
E
GH
J
6 Owner’s Manual for Flameless Air Heater
General Information
Emissions Information
For emissions information, see the OEM manual.
Engine Oil Recommendations
NOTE: Certain brands/types of oil can be used regard-
less of specified API or ACEA grade.
Figure 2-1. Engine Oil Viscosity Chart for 550F
NOTE: For temperatures below -13° F (-25° C), use SAE
5W30.
Engine capacity: 9.8-12.9 qt (9.3-12.1 L).
For more information, see the engine manual.
Coolant Recommendation
Use of improper coolants can damage the engine cooling
system. Use demineralized water or distilled water for
best results. Hard water causes scale deposits, which
reduces cooling efficiency and raises internal
temperatures, possibly leading to engine damage.
Where the atmospheric temperature falls below freezing
point, the cooling system should be drained after engine
operation, but to eliminate the need for repeated draining
and refilling, the use of antifreeze solution is highly
recommended. Follow these antifreeze/water guidelines:
• A 50/50 ethylene glycol base antifreeze/water mix,
which provides protection to -34°F (-37°C), is rec-
ommended for use in this engine.
• Never exceed a 60/40 antifreeze/water mix, which
provides protection to about -58°F (-50°C).
• Any coolant must be nitrite free and meet the per-
formance standards of ASTM D6210.
System capacity (engine only): 4.5 qt (4.3 L).
For more information, see the engine manual.
Fuel System
The engine is designed to use either Number 1-D or
Number 2-D diesel fuel.
• For better fuel economy, use Number 2-D diesel
fuel whenever possible.
• At temperatures below 20° F (-7° C), use Number
1-D or a winterized blend (check with the service
station operator to ensure you get the properly
blended fuel).
The following are required for the diesel fuel:
• Must be free from dust particles
• Must have adequate viscosity
• Must have high cetane value
• Must have high fluidity at low temperature
• Must have low or ultra-low sulfur content
EPA requirement; varies by geographic location
• Must have little residual carbon
If fuel other than what is specified is used, engine
function will be lowered. For more information, see the
engine manual.
Fuel tank capacity: 159 gal (602 L).
Grade Type
API CD, CE, CF, CF-4, CH-4, CI-4, CI-4 plus
ACEA A3/B3, A3/B4, A5/B5, E2, E3, E4, E5, E7
JASO DH-1
'$1*(5
5LVNRISRLVRQLQJ'RQRWXVHPRXWKWR
VLSKRQFRRODQW'RLQJVRZLOOUHVXOWLQ
GHDWKRUVHULRXVLQMXU\ Applicable Standard Recommendation
JIS (Japanese Industrial Standard) No. 2
DIN (Deutsche Industrie Normen) DIN 51601
SAE (Society of Automotive Engineers)
Based on SAE-J-313C No. 2-D
BS (British Standard)
Based on BS/2869-1970 Class A-1
'$1*(5
([SORVLRQDQG)LUH)XHODQGYDSRUVDUH
H[WUHPHO\IODPPDEOHDQGH[SORVLYH.HHSILUH
DQGVSDUNDZD\)DLOXUHWRGRVRZLOOUHVXOW
LQGHDWKRUVHULRXVLQMXU\
'$1*(5
([SORVLRQDQG)LUH'RQRWRYHUILOOIXHOWDQN
2YHUILOOLQJPD\FDXVHIXHOWROHDNDQGLJQLWH
RUH[SORGHUHVXOWLQJLQGHDWKRUVHULRXVLQMXU\
Owner’s Manual for Flameless Air Heater 7
General Information
Hydraulic Oil
Type: Exxon Mobile DTE-10 ISO VG 68 hydraulic oil.
System capacity: 23 gal (87 L).
Trailer Towing Guidelines
Driving a vehicle with a trailer in tow is vastly different
than driving the same vehicle without a trailer in tow.
Consider the following:
•It takes longer to get up to speed
•More room is needed to turn and pass
•More distance is needed to stop
•The driver is responsible for keeping the vehicle
and trailer in control
Before towing, verify the following:
•The coupling, safety chains, safety brake, tires,
wheels, and lights are in working order
•The breakaway battery is fully charged
•Wheel lug nuts are tightened to 85-95 ft-lbs (115-
129 Nm)
•Brake controller engages the trailer brakes before
the tow vehicle brakes
While towing, make regular stops to verify the following:
•Coupler is secured to the hitch and locked
•Electrical connections are secure
•Appropriate slack in safety chains
•Appropriate slack in breakaway switch pull-pin
cable
•Tires are inflated to proper air pressure and no
damage or unusual wear to tread or sidewalls
•Trailer and doors are secured and latched
Wheel Chock Guidelines
•Select wheel chock according to equipment type
and size
•Always use in pairs and on firm surfaces
•Chock in direction of grade
•Chock both sides of wheel if direction of grade is
unknown
•Use wheel chock only after parking brake is
applied and tested
•Center chocks squarely against tread of each
wheel
•Do not drive over wheel chocks
Informational Decals
'$1*(5
)ZESBVMJD'MVJE*OKFDUJPO)JHIQSFTTVSFIJHIUFNQFSBUVSF
IZESBVMJDGMVJEDBOQJFSDFTLJOBOEDBVTFTFWFSFCVSOT%POPU
DIFDLGPSMFBLTXJUIIBOET4FFLJNNFEJBUFNFEJDBMBUUFOUJPOJODBTFPG
BDDJEFOU'BJMVSFUPQSPUFDUCPEZBDDPSEJOHMZXJMMSFTVMUJOEFBUIPSTFSJPVT
JOKVSZ
:$51,1*
7UDLOHUPXVWEHVHFXUHO\FRXSOHGWRWKHKLWFK
DQGFKDLQVFRUUHFWO\DWWDFKHG8QFRXSOHGRU
XQFKDLQHGWRZLQJFRXOGUHVXOWLQGHDWKRUVHULRXV
LQMXU\
:$51,1*
3URSHUW\RU(TXLSPHQW'DPDJH7LJKWHQZKHHOOXJ
QXWVDIWHUILUVWPLOHVWRIDFWRU\VSHFLILFDWLRQV
)DLOXUHWRGRVRFRXOGUHVXOWLQGHDWKVHULRXVLQMXU\
SURSHU\RUHTXLSPHQWGDPDJH
Location Decal Description
On back of right-
side door
•Decal shows tire and loading information
•Manufacturer’s decal shows VIN #,
model #, date of manufacture, GVWR,
vehicle class, and tire and rim size
•Emissions decal
Inside unit, right
side, riveted to
partition
•Blue and silver metal tag shows serial #,
Model #, VIN, and MAC phone #
Front of trailer,
near jack
•Tire and loading information
•Decal shows VIN #, model #, date of
manufacture, GVWR, and tire and rim
size
:$51,1*
9HULI\XQLWLVSURSHUO\VHFXUHGZLWKZKHHO
FKRFNVDQGRQOHYHOJURXQG)DLOXUHWRGRVR
FRXOGUHVXOWLQGHDWKRUVHULRXVLQMXU\
8 Owner’s Manual for Flameless Air Heater
General Information
Controller
For troubleshooting, see Digital Controller Status
Messages.
Figure 2-2. Controller
Monitoring, Diagnostic, and Protective Features
The unit’s mechanical and electrical systems are
connected to various sensors that monitor unit status. If
conditions occur outside of predetermined manufacturing
parameters, the controller will automatically stop the
machine and display fault information. The controller can
also display a variety of critical alerts, diagnostics, and
recommendations. The controller provides a variety of
real-time current operating condition data. For more
information, see the engine harness wiring diagrams.
Button Position Manual Mode Auto Mode
AIncrease heat Increase temperature
setting
BIncrease fan Decrease temperature
setting
COverview/Analog gauge screen
DMain menu
EHeater on/off
FNext screen
GPopup “Softkeys”
001576
E
A
B
C
D
F
G
Owner’s Manual for Flameless Air Heater 9
Operation
Section 3 Operation
Before Starting Engine
Pre-start Checklist
•Remove all flammable materials and fire hazards
within 5 ft (1.5 m) of heater
•Keep heater a minimum of 5 ft (1.5 m) from
structures or barricades
•Verify unit is not leaking fluids: check inside and
outside the unit for leaking fuel, engine oil, HTF/
hydraulic oil, and engine coolant
•Verify following are clear of debris and
obstructions:
– Engine air intake
– Engine exhaust stack
– Outlets and fan intakes
•Verify air duct hose is securely fastened to outlet
duct assembly
•Check fuel, engine oil, and engine coolant levels
•Verify unit is properly secure (jack deployed,
wheels chocked) and level
•Check alternator drive belt for tension and wear
Engine Oil Check
1. Remove dipstick from crankcase and wipe it clean.
2. Insert dipstick fully and remove slowly.
3. Oil level must be between the Full and Add marks
on the dipstick.
Hydraulic Oil Check
On the hydraulic fluid reservoir tank is a gauge showing
hydraulic oil level. Verify the level is between MIN and
MAX.
Engine Coolant Check
1. Remove radiator fill cap.
2. Check coolant level and degree of fouling. Level
should be approximately 0.4 in (10 mm) below the
radiator core top.
3. Install radiator cap securely.
Battery Check
1. Verify battery cable connections are not loose or
corroded.
2. Verify battery electrolyte level is sufficient. If
necessary, replenish with a commercially available
electrolyte, such as distilled water.
:$51,1*
+RW6XUIDFHV:KHQRSHUDWLQJPDFKLQHGRQRW
WRXFKKRWVXUIDFHV.HHSPDFKLQHDZD\IURP
FRPEXVWLEOHVGXULQJXVH+RWVXUIDFHV
FRXOGUHVXOWLQVHYHUHEXUQVRUILUH
&$87,21
(QJLQHGDPDJH9HULI\SURSHUW\SHDQGTXDQWLW\RI
HQJLQHRLOSULRUWRVWDUWLQJHQJLQH)DLOXUHWRGRVR
FRXOGUHVXOWLQHQJLQHGDPDJH
:$51,1*
5LVNRIEXUQV'RQRWRSHQFRRODQWV\VWHP
XQWLOHQJLQHKDVFRPSOHWHO\FRROHG
'RLQJVRFRXOGUHVXOWLQVHULRXVLQMXU\
:$51,1*
(OHFWULFDOVKRFN'LVFRQQHFWEDWWHU\JURXQG
WHUPLQDOEHIRUHZRUNLQJRQEDWWHU\RUEDWWHU\
ZLUHV)DLOXUHWRGRVRFRXOGUHVXOWLQGHDWK
RUVHULRXVLQMXU\
D
:$51,1*
5LVNRIEXUQ'RQRWRSHQRUPXWLODWHEDWWHULHV
%DWWHULHVFRQWDLQHOHFWURO\WHVROXWLRQZKLFKFDQ
FDXVHEXUQVDQGEOLQGQHVV,IHOHFWURO\WHFRQWDFWV
VNLQRUH\HVIOXVKZLWKZDWHUDQGVHHNLPPHGLDWH
PHGLFDODWWHQWLRQ
D
:$51,1*
&$87,21
'RQRWPDNHEDWWHU\FRQQHFWLRQV
LQUHYHUVH'RLQJVRZLOOUHVXOWLQ
HTXLSPHQWGDPDJH
10 Owner’s Manual for Flameless Air Heater
Operation
Engine and Heater Startup
1. Close all doors that access the unit’s interior.
IMPORTANT NOTE: All doors on the unit must be
closed during operation.
2. Turn the ignition key to ON.
The screen displays “Engine Preheat” (Figure 3-
1).
Figure 3-1. Engine Preheat
3. When the screen displays “Start Engine” (Figure
3-2), turn ignition key to START.
Figure 3-2. Start Engine
4. The screen displays “Engine Warming -- Please
Wait.” (Figure 3-3).
Figure 3-3. Engine Warming
5. When the coolant temperature reaches 140°F
(60°C), engine warming is complete and the heater
automatically begins warming. The screen displays
“Heater is warming up--Please wait” (Figure 3-4).
Figure 3-4. Heater Warming
When the heater is warm, heat begins blowing from ducts
and the screen displays “Heater On--Press Off to stop
the heater” (Figure 3-5).
Figure 3-5. Heater On
001580
&$87,21
(TXLSPHQW'DPDJH'RQRWFRQWLQXRXVO\
FUDQNHQJLQHIRUPRUHWKDQWHQVHFRQGV
'RLQJVRZLOOOHDGWRRYHUGLVFKDUJHRIEDWWHULHV
DQGVWDUWHUVHL]XUH
001584
Start Engine
001585
Engine Warming --
Please Wait
001581
001586
Heater On--Press O
to stop the heater.
Owner’s Manual for Flameless Air Heater 11
Operation
Adjusting Heater Output
The heater has two modes, AUTO and MANUAL. The
current mode displays at the top of the controller screen.
AUTO Mode
In AUTO mode, output temperature is manually set, as
follows:
•To increase output temperature, press (+) (Figure
3-6, item A)
•To decrease output temperature, press (-) (Figure
3-6, item B)
Figure 3-6. AUTO Mode
MANUAL Mode
In MANUAL mode, heater output can be set to minimum
fan or maximum fan, as follows:
•For minimum fan, press MIN FAN (Figure 3-7, item
A)
•For maximum fan, press MAX FAN (Figure 3-7,
item B)
Figure 3-7. MANUAL Mode
Heater and Engine Shutdown
1. Press OFF to stop the heater (Figure 3-7, item C).
The screen displays “Heater is cooling down--
Please wait” (Figure 3-8).
Figure 3-8. Heater Cooling
NOTE: While cooling, the ON button is disabled.
When cooling is complete, the screen displays as shown
in Figure 3-9.
Figure 3-9. Cooling Complete
2. When the control screen indicates it is safe to turn
off the engine, turn the ignition key to OFF.
001578
A
B
001579
A
B
C
001582
001583
CAUTION
(000240a)
Unit damage. Do not stop engine before heating
unit is cooled. Doing so could result in unit damage.
12 Owner’s Manual for Flameless Air Heater
Operation
This page intentionally left blank.
Owner’s Manual for Flameless Air Heater 13
Maintenance
Section 4 Maintenance
Regular maintenance will improve performance and
extend engine/equipment life. Generac Power Systems,
Inc. recommends that all maintenance work be
performed by an Independent Authorized Service Dealer
(IASD). Regular maintenance, replacement or repair of
the emissions control devices and systems may be
performed by any repair shop or person of the owner’s
choosing. However, to obtain emissions control warranty
service free of charge, the work must be performed by an
IASD. See the emissions warranty.
NOTE: Normal maintenance service and replacement of
parts is the responsibility of the owner and, as such, are
not considered defects in materials or workmanship
within the terms of the warranty. It is strongly
recommended that equipment be periodically checked by
an IASD.
Maintenance Tasks
Daily checks must be performed when unit is operated
continuously for extended periods of time. Daily checks
and routine monthly checks can be performed by an
authorized operator.
Daily Walk Around Inspection
Look for conditions that could hinder performance or
safety, such as (but not limited to) oil, coolant, fuel
leakage, blocked vents, loose or missing hardware and
electrical connections. Check for foreign matter blocking
the vents and on top of unit.
•Visually inspect outer cover for significant damage
beyond scuffs and small nicks.
•Visually inspect for wire abrasion.
•Visually inspect the fan belt for cracks, fraying and
stretching. Verify the belt is properly seated in the
pulley grooves. Every 750 hours, it is
recommended that the belt be removed and
checked for wear. While the belt is removed,
inspect pulleys and bearing. Rotate and feel for
hard turning or unusual sounds.
•Coolant should be checked daily.
•Check electrical connectors, battery and ground
points. Look for loose or missing hardware.
•Check all flexible rubber hoses for deterioration.
•Check hydraulic hoses for signs of wear.
•Verify hoses are not crushed, kinked or twisted.
•Verify there are no cracks or corrosion.
Check Engine Oil Level
NOTE: If engine was running, wait at least ten minutes
before proceeding.
1. Remove dipstick and wipe it dry with a clean, lint
free cloth.
2. Slowly insert the clean dipstick into the tube. Verify
the dipstick is fully seated in the dipstick tube.
3. After ten seconds, remove the dipstick and look at
the oil level on both sides. The lower of the two
readings is the correct oil level measurement.
4. Add oil (if necessary) to adjust the level. After
adding or changing the oil, run the engine for one
minute before checking the oil level. Wait ten
minutes to allow the engine to cool and oil to fully
drain into the oil pan.
Typical causes of inaccurate oil level readings:
•Reading the high level of the dipstick
•Reading the dipstick before the oil fully drains into
the oil pan
•Inserting and removing the dipstick too quickly
•The dipstick is not fully seated in the dipstick tube
Drain the Oil
1. Place container under drain port, or connect hose
or piping to drain port leading to container.
2. Remove plug from oil drain/manifold.
3. Open drain valve.
4. See engine manual for oil filter information.
5. Close drain valve.
6. Remove hose or piping if applicable.
(000135)
CAUTION
Engine damage. Verify proper type and quantity of
engine oil prior to starting engine. Failure to do so
could result in engine damage.
:$51,1*
5LVNRIEXUQV$OORZHQJLQHWRFRROEHIRUH
GUDLQLQJRLORUFRRODQW)DLOXUHWRGRVR
FRXOGUHVXOWLQGHDWKRUVHULRXVLQMXU\
3RWHQWLDORIFDQFHU3URORQJHGRUUHSHDWHGFRQWDFW
ZLWKXVHGPRWRURLOKDVEHHQVKRZQWRFDXVHFDQFHU
LQODERUDWRU\DQLPDOV7KRURXJKO\ZDVKH[SRVHG
DUHDVZLWKVRDSDQGZDWHU B
:$51,1*
14 Owner’s Manual for Flameless Air Heater
Maintenance
7. Replace plug in drain port on sub base.
Adding Coolant
If coolant level is below the filler neck, coolant must be
added. (See Coolant Recommendation.)
1. Verify engine is stopped and cooled.
2. Remove radiator cap.
3. Fill radiator slowly with coolant until it comes up to
the filler neck.
4. Operate engine approximately five minutes at a
low idle speed to bleed the air in the coolant circuit.
NOTE: Coolant level will drop.
5. Stop the engine and, once cooled, replenish with
coolant.
Maintenance Schedule
Periodic inspection, service, and maintenance of this unit
is critical to ensure reliable operation. The following is the
manufacturer’s recommended maintenance schedule.
The maintenance items will need to be performed more
frequently if the heater is used in severe applications
(such as very high or very low ambient conditions or
extremely dirty/dusty environments). Use the heater hour
meter or calendar time, whichever occurs first, from the
previous maintenance interval to determine the next
required maintenance interval. Note that some checks
are based on hours of operation.
Follow all applicable safety alerts found in this manual or
engine service manual before performing any
maintenance checks or service.
This maintenance schedule reflects the minimum tasks
that need to be accomplished to verify the heater remains
operational. Some of the tasks can be performed by an
authorized operator and others must be performed by an
IASD.
NOTE: An authorized operator is one who has been
trained by a IASD in proper operation and inspection of
this unit.
'$1*(5
5LVNRISRLVRQLQJ'RQRWXVHPRXWKWR
VLSKRQFRRODQW'RLQJVRZLOOUHVXOWLQ
GHDWKRUVHULRXVLQMXU\
:$51,1*
5LVNRIEXUQV'RQRWRSHQFRRODQWV\VWHP
XQWLOHQJLQHKDVFRPSOHWHO\FRROHG
'RLQJVRFRXOGUHVXOWLQVHULRXVLQMXU\
&$87,21
'RQRWXVHDQ\FKURPDWHEDVHUXVWLQKLELWRUZLWK
SURS\OHQHJO\FROEDVHDQWLIUHH]HERRVWHUVRU
DGGLWLYHV'RLQJVRZLOOFDXVHRYHUKHDWLQJ
Owner’s Manual for Flameless Air Heater 15
Maintenance
Engine Maintenance Schedule
To protect the warranty status of the engine, engine maintenance and repairs should be performed by an IASD. For
more information on the checks and maintenance described below, see the engine manual.
Daily
•Check engine oil: Level, leakage, and fouling
•Check coolant: Level, leakage, and fouling
•Check hydraulic oil: Level and filter restriction
•Check radiator filler cap fitting condition
•Check alternator drive belt tension and replace if necessary
•Check fan belt tension
•Check trailer breakaway battery charge condition
•Check preheating condition
•Check engine starting condition
•Check exhaust smoke condition
•Check hoses and connections
•Inspect exhaust system for wear and cracking
Every 6 Months •Replace coolant
At 50
Operation Hours
(Break-In)
•Change engine oil and oil filter
•Change engine fuel filters
At 250
Operation Hours
•Replace fuel filter element
•Clean water sedimenter element
•Clean electromagnetic pump filter
At 500
Operation Hours
•Replace engine oil and oil filter element
•Inspect engine accessory drive belts
•Inspect fuel supply system
•Replace engine fuel filters
•Check alternator drive belt tension and replace if necessary
•Check injection nozzle (*)
•Replace fuel filter element
•Clean water sedimenter element
•Clean electromagnetic pump filter
At 750
Operation Hours
•Replace fuel filter element
•Clean water sedimenter element
•Clean electromagnetic pump filter
At 1000
Operation Hours
•Replace engine oil and oil filter element
•Inspect engine accessory drive belts
•Inspect fuel supply system
•Clean cooling system circuit
•Check and clean the starter and alternator(*)
•Check cylinder compression pressure(*)
•Check valve clearance(*)
•Check injection nozzle (*)
•Replace fuel filter element
•Clean water sedimenter element
•Clean electromagnetic pump filter
At 1250
Operation Hours
•Replace fuel filter element
•Clean water sedimenter element
•Clean electromagnetic pump filter
16 Owner’s Manual for Flameless Air Heater
Maintenance
Other Maintenance Checks
At 1500
Operation Hours
•Replace engine oil and oil filter element
•Inspect engine accessory drive belts
•Inspect fuel supply system
•Clean positive crankcase ventilation valve
•Check injection nozzle (*)
•Replace fuel filter element
•Clean water sedimenter element
•Clean electromagnetic pump filter
After 1500
Operation Hours All hours-based checks and maintenance should now be performed every 250 hours
(*) = When servicing these items, consult the equipment supplier.
NOTE: All service and maintenance or repairs are recommended to be completed by an IASD to maintain the
warranty status of a unit. You cannot be denied emissions warranty coverage solely based on failure to complete
recommended service maintenance.
Every 500
Hours •Change air filter
Every 1000
Hours
•Change hydraulic oil
•Change hydraulic pump filters
Annually
•Replace hydraulic breather/separator
•Carbon Monoxide (CO) test at outlet air duct by trained service technician
•Check blower/fan hardware for condition and tightness
Table of contents
Other Generac Power Systems Heater manuals
Generac Power Systems
Generac Power Systems MIH1.2 User manual
Generac Power Systems
Generac Power Systems MIH800 User manual
Generac Power Systems
Generac Power Systems MAC 750F User manual
Generac Power Systems
Generac Power Systems MAC 950F User manual
Generac Power Systems
Generac Power Systems G0071010 User manual
Generac Power Systems
Generac Power Systems G0071010 User manual
Generac Power Systems
Generac Power Systems G0071020 User manual
Generac Power Systems
Generac Power Systems MAC400HC User manual
Generac Power Systems
Generac Power Systems G0071031 User manual
Generac Power Systems
Generac Power Systems MAC1.2G User manual
