Flagro FLE-150RC Instruction Manual

OPERATING INSTRUCTIONS MANUAL
FLE-150RC
575V
INDUSTRIAL / COMMERCIAL ELECTRIC HEATER
(OPERATOR MUST RETAIN FOR FUTURE REFERENCE)
Suitable for indoor installation only / Unvented / Unattended Type
26 Benfield Drive, St.Catharines, Ontario Canada L2S 3V5
(P) 905-685-4243 - (F) 905-685-0113

FLE-150RC 575V OPERATING INSTRUCTIONS MANUAL
GENERAL HAZARD WARNING:
FAILURE TO COMPLY WITH THE PRECAUTIONS
AND INSTRUCTIONS PROVIDED WITH THIS
HEATER, CAN RESULT IN DEATH, SERIOUS
BODILY INJURY AND PROPERTY LOSS OR
DAMAGE FROM HAZARDS OF FIRE, EXPLOSION
BURN ASPHYXIATION, OR ELECTRICAL SHOCK
ONLY PERSONS WHO CAN UNDERSTAND AND
FOLLOW THE INSTRUCTIONS SHOULD USE OR
SERVICE THIS HEATER.
IF YOU NEED ASSISTANCE OR HEATER
INFORMATION SUCH AS AN INSTRUCTIONS
MANUAL, LABEL, ETC. CONTACT THE
MANUFACTURER
WARNING: FIRE, BURN, INHALATION
AND EXPLOSION HAZARD, KEEP SOLID
COMBUSTIBLES, SUCH AS BUILDING
MATERIALS, PAPER, OR CARDBOARD, A SAFE
DISTANCE AWAY FROM THE HEATER AS
RECOMMENDED BY THE INSTRUCTIONS
NEVER USE THE HEATER IN SPACES WHICH DO
OR MAY CONTAIN VOLATILE OR AIRBORNE
COMBUSTIBLES, OR PRODUCTS SUCH AS
GASOLINE SOLVENTS, PAINT THINNER, DUST
PARTICLES OR UNKNOWN CHEMICALS
WARNING: NOT FOR HOME OR
RECREATIONAL VEHICLE USE

Introduction
You have just received an FLE-150RC 150kW Electric Construction Heater manufactured by Flagro.
Use: The FLE-150RC Electric Construction Heater is designed for temporary heat only.
The heater is to be installed indoors
The FLE-150RC is designed to heat large spaces, buildings
and machines without worrying about on site fuel.
Quality
: The FLE-150RC is built with the highest quality of components, giving our
customers the confidence they deserve in a Flagro product.
Convenience:
The FLE-150RC gives our customers the flexibilty of a 60kW/90kW/150kW heat setting.
The heater is equipped with a; fan speed inverter control that provides optimum temperature rise
by adjusting blower output at each heat setting. Colour coded Cam Lock power connections
for easy installation. Remote thermostat option available.
Inlet Duct Adapter
The FLE-150RC includes a permanant inlet duct adapter.
Safety
Always verify that you have proper voltage supply. (575V) It is important to check
the wiring connections inside the heater before plugging in the Cam Locks.
Use a meter to measure volt supply to each cam lock.
Work on the internal systems should only be attempted by a certified electrician and
only when power has been disconnected and can not be reconnected to the heater.
Grounding
The heater is supplier with a cam lock system with a grounding connection and is indicated with a "G"
on the cam lock panel. The heater is also supplied with a grounding nuts found on all panels.
It is very important to double check that all grounding connections are properly secure.
Clearance from Combustibles
The discharge temperature of these units may reach very high temperatures. Maintain minimum
distance from combustible materials as follows:
Top: 6 Inches
Bottom: 6 Inches
Sides: 6 Inches
Discharge: 15 FT

MAINTENANCE
1Every heater should be inspected before each use, and at least annually by a
qualified service person
2The appliance must be kept clear and free from combustible materials,
gasoline and other flammable vapors and/or liquids
3The flow of ventilation air must not be obstructed.
Be sure to check the fan assembly and ensure the motor and blade
are operating properly.
4Compressed air may be used to keep components free of dust and dirt
build up.
Pre-Start Checklist
1Heater must be level and lockable wheels must be in the lock position
2Make sure blower switch and both heat selection switches are in the
"OFF" positions
3Make sure the air intake is free from any obstruction(s)
4Make sure the heater oulet is free from any obstruction(s)
5Make sure the heater is properly grounded
6Check power supply voltage and ampacity

START UP INSTRUCTIONS
1Determine power source - 575V (confirm power source is correct)
2Remove top cover and inspect all wiring
(once complete, secure top cover to heater using the same hardware)
3Connect Flanged Camlocks to female camlocks ( colour coded)
Connect camlocks as follows:
Red A
Black B
Blue C
Ground G
3 PHASE UNIT CONNECTION
4Turn on power supply
5Pull "Master" button to the out position
6Determine "Manual" or Remote Thermostat (if remote, set desired temperature)
7Turn Blower on/off switch to the "ON" position
(The blower will start and the green air flow light will come on)
8Turn on heater settings as desired
( 150kW= 60kW & 90kW combined)
Failure to have proper air flow will cause unit to overheat and shut down
The green light should come on and air should be pushed through the outlet port
Check to see that only the green light is on.
Caution: Heater body panels will get very hot

Notes:
Speed inverter is pre-set for optimum air flow/temperature rise.
Based on kW selection, blower will adjust speed. See Chart below
HEAT SETTING
BTUH
CFM
TEMP. RISE
NOISE RATING
150 kW 512,000 7300 120F 83 DB
90 kW 307,000 6700 88F 81 DB
60kW 205,000 5400 56F 76 DB
FAN ONLY 7900 N/A 85 DB
SHUTDOWN
1
Move all heat control setting to the "OFF" position
2
Leave Fan in the "ON" position for 3-5 minutes
3
Turn Fan OFF
( blower is preset to run for 30 seconds before coming to a complete stop)
4
Push Master button "IN"
5
Shut off all power source
6
Disconnect all power sources
7
Store heater

HEATER SPECIFICATIONS
MODEL
FLE150RC
Power Requirements 575V
MAXIMUM INPUT (KW) 512,000 btu
BLOWER 7 1/2 H.P.
TEMPERATURE RISE (above ambient) 60KW 56 F
90KW 88 F
150 KW 120 F
AMP DRAW MOTOR 5 AMPS
60KW 54 AMPS
90KW 81 AMPS
150KW 136 AMPS
DB (noise level) FAN ONLY 85
60KW 76
90KW 81
150KW 83
INLET SIZE (no ducting) 20" Dia.
OUTLET SIZE
20" Dia.
(Designed for 20" Dia. Ducting)
DIMENSIONS 40 X 58 X 33
H X L X W (IN.)
WEIGHT 560 LBS
AIR CIRCULATION 7900 CFM

VFD (VARIABLE FREQUENCY DRIVE)
EVERY FLE SERIES HEATER IS EQUIPPED WITH A “VFD” VARIABLE
FREQUENCY DRIVE. THE VFD HAS BEEN PRE PROGRAMMED WITH
THE FOLLOWING SETTINGS:
HEAT SETTING AIR SPEED Hz
FLE-150RC (60 KW) 40Hz (4100 CFM)
FLE-150RC (90 KW) 50 Hz (4650 CFM)
FLE-150RC (150 KW) 55 Hz (5300 CFM)
FLE-150RC (FAN ONLY) 60 Hz (7900 CFM)
THE VFD HAS BEEN PASSWORD PROTECTED WITH THE PREPROGAMMED SETTINGS.
THESE SETTINGS ARE THE “MINIMUM” AIR FLOW REQUIRED, THE CHART BELOW
PROVIDES THE PARAMETER FOR EACH AIR FLOW SETTING:
VFD PARAMETER CODE SETTING
P133
FAN ONLY AIRFLOW
(FLE-150RC)
P131 60KW (FLE-150RC) AIRFLOW
P132 90KW (FLE-150RC) AIRFLOW
P134 150KW (FLE-150RC) AIRFLOW

VFD (VARIABLE FREQUENCY DRIVE)
THE FOLLOWING PAGES ARE FOR REFERENCE OF WARNING OR FAULT MESSAGES THAT
MAY APPEAR ON THE SCREEN OF THE VFD. IF ANY OF THE MESSAGE DO APPEAR, PLEASE
REVIEW THE VFD MANUAL OR CONTACT FLAGRO INDUSTRIES TO HELP CORRECT THE
ISSUE. TO REVIEW FAULT HISTORY, PASSWORD MUST BE ENTERED AND GO TO P500 FOR
HISTORY

VARIABLE FREQUENCY DRIVE- STATUS/WARNING MESSAGES

VARIABLE FREQUENCY DRIVE- FAULT MESSAGES

TROUBLESHOOTING
PULL MASTER SWITCH ON, NO RED LIGHT
“NON-PROVEN”
TRY BLOWER SWITCH, IF BLOWER ENGAGES,
TURN POWER OFF & TEST RED “NON-PROVEN”
LIGHT CONTACT BLOCK. SHUT POWER OFF TO
HEATER, TEST OHMS RESISTANCE ACROSS
CONTACT BLOCK. IF OHMS RESISTANCE GOOD,
FAULTY BULB
IF BLOWER DOES NOT ENGAGE, CHECK OUTPUT
POWER ON TRANSFORMER, SHOULD BE 120
VOLTS. IF NO POWER, TURN POWER OFF AND
CHECK FU1 (5A)FUSE, IF GOOD, CHECK FB4 (.5 A)
FUSES FOR CONTINUITY
IF TRANSFORMER HAS PROPER OUTPUT POWER,
CHECK VFD SCREEN FOR COMMAND. SHOULD
READ “STOP” BEFORE COMMAND. LOOK FOR
FAULT CODES ON SCREEN. REFER TO VFD FAULT
MESSAGE CHART. YOU CAN ALSO CHECK OHMS
RESISTANCE ACROSS CONTACT BLOCKS ON
BACK OF BLOWER SWITCH. BLOCK WITH RED
WIRES-CONTACTOR CONTROL, BLOCK WITH
YELLOW WIRES- VFD CONTROL. ALWAYS HAVE
POWER OFF TO TEST OHMS

UNIT WILL NOT “PROVEN” AIR, NO GREEN
LIGHT AFTER ENGAGING BLOWER FAN
SWITCH
WILL THE HEAT ENGAGE? IF NOT, CHECK AIR
PRESSURE SWITCH (FLE-150) TRY TO BYPASS
SWITCH TO DETERMINE IF FAULTY. SHUT POWER
OFF, BYPASS SWITCH, THEN TURN POWER ON
FOR TEST.
INSPECT INTAKE AIR FILTER(S) CLEAN IF
REQUIRED
UNIT PROVES AIR, BLOWER RUNS, BUT
HEAT WILL NOT ENGAGE.
CHECK OHMS RESISTANCE OF HEATER CONTACT
BLOCKS. CHECK HIGH LIMIT SWITCH, BYPASS OR
TEST OHMS.
CHECK CONTACTOR FUSES, EACH HEATER HAS
THREE FUSES FOR LOW HEAT & THREE FUSES
FOR HIGH HEAT .

TURN UNIT ON, ENGAGE BLOWER SWITCH, FUSES
BLOW FOR VFD.
CHECK CONNECTIONS IN VFD, THREE BLACK WIRES FOR
POWER SUPPLY & THREE BLACK WIRES FOR MOTOR
OUTPUT. IF ALL CONNECTIONS LOOK GOOD, TRY
DISCONNECTING MOTOR AND TRY AGAIN. IF FUSES BLOW
AGAIN, ISSUE WITH VFD. IF FUSES DO NOT BLOW CHECK
MOTOR & BLOWER WHEEL
BLOWER ENGAGED, HEAT SWITCHES ADJUST
AIR FLOW, BUT HEAT ELEMENT DOES NOT
COME ON
CHECK CONTACTOR FUSES. CHECK CONTACT BLOCK
BEHIND HEATER SWITCH (RED WIRE) PERFORM OHM
RESISTANCE TEST. BYPASS HIGH LIMIT & OR AIR
PRESSURE SWITCH. IF ELEMENT STILL DOES NOT
ENGAGE, RUN JUMPER WIRE FROM TB3 TO TB10, IF
ELEMENT WORKS, PROBLEM WITH ONE OF THE
RELAYS. R1 (RELAY) IS FOR THE AIR PRESSURE
SWITCH & R2 (RELAY) IS FOR THE HIGH LIMIT SWITCH.
IF NEED TO INCREASE AIRFLOW & WHEN YOU TRY
TO ADJUST THE VFD ORIGINAL HZ SETTINGS,
FLASHES THE CODE: “cE” IS DISPLAYED ON
SCREEN
EPM HAS ISSUES WITH PARAMETER SETTINGS, ENTER
PASSWORD INTO VFD, GO TO P199 AND CHANGE SETTING
TO “5” FROM “0” THEN TRY TO MAKE SPEED CHANGES.
THAT WILL CONVERT EPM DATA TO CURRENT VERSION

BLOWER ENGAGED, BUT ONLY
ONE HEAT SWITCH WORKS
IS THE VFD ADJUSTING AIRFLOW? IF
SO, THE COMMAND CONTACT BLOCK
FUNCTION WORKS CORRECTLY.
CHECK CONTACT BLOCKS ON BACK OF
SWITCH, PERFORM OHM RESISTANCE
TEST.
CHECK FUSES TO THE CONTACTOR
THAT IS NOT WORKING PROPERLY.
DO OHM TEST OF ELEMENT (EACH SIDE
TEST SEPARATE FLE-60 (20KW, 40KW)
FLE-150RC (60KW, 90KW) PLEASE SEE
CHART BELOW FOR READINGS:
TEST OHM READING
FLE-150RC (60KW BANK) 7 OHMS
FLE-150RC (90KW BANK) 4.3 OHMS
OHM READING MAY VARY, WHAT MATTERS IS THAT EACH BANK IS
SIMULAR BETWEEN THE THREE PHASES, IF OHMS ARE NOT SIMULAR,
INSPECT OF HEATING ELEMENT MAY BE REQUIRED

FLE-150RC – PARTS LIST
FLE-1501A (575 VOLT)
150KW RESISTOR ELEMENT
FLE-1502
FAN BLADE ASSEMBLY
VARIALBLE SPEED DRIVE
7.5 HP MOTOR
FLE- 1503A (575VOLT)
FLE-1504A (575 VOLT)
FUSES
FLE-1509 - 125 Amp Class T
FLE-1510A - 80 Amp Class T
FLE-1511B – 12 Amp Class CC
FLE-631 – ½ Amp Class CC
FLE-1515 - 2 Amp AGC Glass
TRANSFORMER
FLE-1508A – 575V
CONTACTOR
FLE-1507 – 90 amp
(2 PER UNIT)
GROUNDING BLOCK
FLE-621
RELAY
FLE-626
(2 PER UNIT)