Modine Manufacturing PV Installation And Service Manual page 27

T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G G G U U I I D D E E
2 2 . . P P i i l l o o t t l l i i g g h h t t s s , , m m a a i i n n b b u u r r n n e e r r w w i i l l l l n n o o t t l l i i g g h h t t : :
P P O O S S S S I I B B L L E E C C A A U U S S E E
2a. Gas valve in off position.
2b. System in lock-out mode.
2c. Cracked or broken sensor
ceramic.
2d. Defective or loose
connections to flame sensor
or flame sensor lead.
2e. Incorrect gas pressure.
2f. Insufficient current signal
from flame sensor.
2g. Incorrect or loose wiring.
2h. Poor ground to ignition
controller.
2i. No power to ignition
controller or gas valve
2j. Loose limit control
connections or defective limit.
2k. Defective or plugged gas
valve regulator.
2l. Defective thermostat or
thermostat out of
calibration.
2m.Thermostat heat anticipator
incorrectly set.
2n. Defective ignition controller.
3 3 . . B B u u r r n n e e r r s s h h u u t t s s d d o o w w n n b b e e f f o o r r e e t t h h e e r r m m o o s s t t a a t t i i s s s s a a t t i i s s f f i i e e d d : :
P P O O S S S S I I B B L L E E C C A A U U S S E E
3a. Flame sensing circuit
failure.
3b. Soot on sensing rod.
3c. Blockage in heat
exchanger.
3d. Blockage in main burner
orifice.
4 4 . . B B u u r r n n e e r r f f a a i i l l s s t t o o s s h h u u t t o o f f f f a a f f t t e e r r t t h h e e r r m m o o s s t t a a t t i i s s s s a a t t i i s s f f i i e e d d : :
P P O O S S S S I I B B L L E E C C A A U U S S E E
4a. Faulty thermostat or
improper heat anticipator
setting.
4b. Defective ignition controller.
4c. Defective gas control.
P P O O S S S S I I B B L L E E R R E E M M E E D D Y Y
2a. Turn to on position.
2b. Reset system.
2c. Replace sensor.
2d. Correct or replace.
2e. Check and adjust if
necessary to manufacturer's
recommendations.
2f. Check current according to
manufacturer's
recommendations and
replace if necessary.
2g. Check wiring.
2h. Check grounding means.
2i. Check voltage to controller
and gas valve.
2j. Check connections. Replace
limit control if necessary.
2k. Inspect gas valve regulator.
Replace if necessary.
2l. Calibrate thermostat or
replace if necessary.
2m.Check anticipator setting
and correct if necessary.
2n. Replace.
P P O O S S S S I I B B L L E E R R E E M M E E D D Y Y
3a. Check flame sensing rod,
ceramic sensor, sensor lead
and connections for
damage or loss of
continuity; Replace
defective elements.
3b. Clean off soot with steel
wool and adjust pilot to
smaller size.
3c. Clean heat exchanger.
Determine cause and
correct.
3d. Clean or replace orifice.
P P O O S S S S I I B B L L E E R R E E M M E E D D Y Y
4a. Check thermostat and
anticipator setting. Replace
if defective.
4b. Replace
4c. Replace.
F F O O R R S S E E R R V V I I C C E E
If a qualified service person cannot solve the problem, consult
your local gas company or local Modine representative.
W W h h e e n n s s e e r r v v i i c c i i n n g g , , r r e e p p a a i i r r i i n n g g o o r r r r e e p p l l a a c c i i n n g g p p a a r r t t s s o o n n t t h h e e s s e e u u n n i i t t s s
a a l l w w a a y y s s g g i i v v e e t t h h e e c c o o m m p p l l e e t t e e M M o o d d e e l l N N u u m m b b e e r r ( ( w w h h i i c c h h i i n n c c l l u u d d e e s s p p o o w w e e r r
c c o o d d e e / / c c o o n n t t r r o o l l c c o o d d e e ) ) a a n n d d S S e e r r i i a a l l N N u u m m b b e e r r f f r r o o m m t t h h e e u u n n i i t t r r a a t t i i n n g g p p l l a a t t e e . .
The samples below show where these numbers can be found.
M M o o d d e e l l N N u u m m b b e e r r D D e e s s i i g g n n a a t t i i o o n n s s
P P V V 2 2 0 0 0 0 A A E E M M 0 0 1 1 3 3 0 0
PV - Propeller Unit
BV - Blower Unit
MBH Input
100 - 100,000 Btu/hr input
200 - 200,000 Btu/hr input
250 - 250,000 Btu/hr input
etc.
Heat Exchanger Type
A - Aluminized
S - Stainless Steel
A - Unit equipped with standing
pilot
E - Unit equipped with intermittent
pilot ignition
SERIAL NUMBER
01121010692
0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 1 1 9 9 5 5 1 1 0 0 0 0 0 0
S S e e r r i i a a l l N N u u m m b b e e r r D D e e s s i i g g n n a a t t i i o o n n s s
0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 1 1 9 9 5 5 1 1 0 0 0 0 0 0
M M O O T T O O R R
V V E E N N D D O O R R C C O O D D E E
01 - Century
05 - Universal
etc.
F F A A N N O O R R B B L L O O W W E E R R
S S U U P P P P L L I I E E R R C C O O D D E E
01 - Revcor
08 - Brookside
etc.
S S E E R R I I E E S S I I D D E E N N T T I I T T Y Y N N U U M M B B E E R R
Identifies which series of controls
were furnished on the unit.
Control Code Type
30 - Complete code
descriptions are
shown on page 28.
etc.
Power Code
01 - Complete Power
Code descriptions
02 - are shown on
page 28
etc.
M - Unit is equipped with 2-stage
or mechanical modulation.
MODEL IDENTIFICATION PLATE
POWER CODE CONTROL CODE
MODEL NUMBER
PAH240AF 01 08
P P V V 2 2 0 0 0 0 A A E E 0 0 1 1 3 3 0 0
S S E E Q Q U U E E N N C C E E
N N U U M M B B E E R R
Y Y E E A A R R O O F F
M M A A N N U U F F A A C C T T U U R R E E
95 - 1995
96 - 1996
etc.
W W E E E E K K O O F F
M M A A N N U U F F A A C C T T U U R R E E
01 - 1 st week of year
26 - 26 week of year
th
etc.
2 2 7 7