Enviro C-10100 Manuale utente
FOR INSTALLERS AND SERVICE TECHNICIANS ONLY
GAS
FIREPLACE
SERVICE
MANUAL
Sherwood Industries Ltd. Duplication of this document is prohibited. All rights reserved.
August 2003 C-10100
This is a service guide designed by SHERWOOD INDUSTRIES LTD.
We hope this manual will assist you to identify and correct operational concerns you might
experience in all ENVIROGAS appliances.
This service guide is designed for TRAINED SERVICE TECHNICIANS AND INSTALLERS.
This guide is NOT to be used by the homeowner.
If after reading this guide and following our recommendations and the problem still excists,
please do-not hesitate to call our technical department.
TechnicalDivision
SHERWOOD INDUSTRIES LTD.
TABLE OF CONTENTS PAGE
1) PILOT WILL NOT STAY LIGHT
A) IGNITION SYSTEM……………………………………………………….1
B) IGNITION SYSTEM OK BUT PILOT WILL NOT LIGHT……………... 3
2) PILOT WILL NOT STAY LIT………………………………………………………7
3) MAIN BURNERS WILL NOT LIGHT…………………………………………….. 9
4) MAIN BURNERS WILL NOT STAY LIT………………………………………….11
5) SOOTING (ALL MODELS)…………………………………………………….…. 15
6) FLAME LIFTING
A) B-VENTED………………………………………………………………... 17
B) DIRECT VENTED………………………………………………………... 18
7) BLOWER OPERATION ………………………………………………………….. 19
8) ORIFICE SIZING CHART………………………………………………………… 20
9) STEP BY STEP SERVICE INSTRUCTIONS……………………………………21
10) GLOSSARY………………………………………………………………………. 23
SUGGESTED TOOLS LIST FOR SERVICING
GAS LEAK DETECTOR
MANOMETER
MULTIMETER
CORDLESS DRILL
WIRE STRIPPER/CRIMPER
WRENCHES, STANDARD AND METRIC
SCREWDRIVERS (TORX T20)
METAL SNIPS
JUMPER WIRES
NUMBERED DRILLS ((DMS))
Sherwood Industries Ltd. ENVIRO 2003
1(PILOT WILL NOT LIGHT
NO SPARK
A) IGNITION SYSTEM
Make sure that wires are not
broken, frayed and that all
connections are tight at both
the piezo ignitor and
electrode.
Replace with only
manufactures parts
Make sure that ceramic on the
electrode is not broken.
Carefully try to spin the
porcelain.
IF IT DOES, replace
electrode.
Make sure a 1/8” (3.175mm)
gap is maintained between
electrode and pilot hood.
SEE PAGE 2 FIGURE 1.
Replace electrode.
Retighten hex nut on back
of the ignitor and make
sure bracket is secure on
the valve.
Make sure the piezo ignitor is
not loose.
Make sure piezo ignitor is
working properly. Place a
screwdriver next to ignitor,
and press ignitor. If it sparks,
OK.
IF IT FAILS, replace piezo
ignitor.
Sherwood Industries Ltd. ENVIRO PAGE 1
3.175mm
Sherwood Industries Ltd. ENVIRO PAGE 2
B) PIEZO IGNITOR OK BUT PILOT WILL STILL NOT LIGHT
Make sure all gas lines have
been connected with no
leaks.
Make sure that the gas is
“ON” (NG) Natural gas and
(LP) Propane tanks are full.
Make sure the appliance
service valve is in the “ON”
position.
SEE PAGE 4 FIGURE 3.
Test to make sure there is no
air in the gas line.
SEE PAGE 4 FIGURE 3.
Make sure that the valve has
not reset itself.
(All valves have an interlock
safety device.)
Make sure pilot injector is
not clogged.
Clean the pilot injector if
necessary.
Wait 60 seconds for the
safety to reset itself.
Use a match to see if air or
gas comes from the pilot
assembly.
Turn service valve to the
“ON” position.
Correct if necessary.
Correct if necessary, test
for gas leaks in an
approved manner.
Sherwood Industries Ltd. ENVIRO PAGE 3
EXPLODED VIEW S.I.T PILOT ASSEMBLY
To remove pilot injector:
Remove the two screws that hold
the pilot assembly to the burner
control assembly.
Lift the assembly straight up being
careful not to damage any
components.
Using a 10 mm wrench undo the
securing nut on pilot tubing and pull
tubing down to access injector.
Being careful not to damage the
ceramic spark electrode.
Replace the injector and reinstall
the pilot tubing, always to perform a
gas leak test before lighting the
pilot assembly.
The number on the side of the
injector will determine the size. This
number is in millimeters.
PILOT HEAD
THERMOPILE
PILOT INJECTOR
SPARK ELECTRODE
THERMOCOUPLE
Sherwood Industries Ltd. ENVIRO PAGE 4
3.5” wc BELOW 0
3.5” wc ABOVE 0
INLET GAS PRESSURE
7” wc (NG) NATURAL
GAS
1.75” wc BELOW 0
1.75” wc ABOVE 0
OUTLET GAS PRESSURE
3.5 “ wc (NG) NATURAL
GAS
NO PRESSURE
SUPPLY PRESSURES
NATURALGAS
PROPANE GAS
50% TURN DOWN MAX SUPPLY PRESSURE 7” wc 12” wc
MIN SUPPLY PRESSURE 5” wc 11.5” wc
33% TURN DOWN MAX SUPPLY PRESSURE 7” wc 13” wc
MIN SUPPLY PRESSURE 4.5” wc 10.5” wc
Sherwood Industries Ltd. ENVIRO PAGE 5
190 mv DC
CHECKING THERMOPILE FOR PROPER VOLTAGE
Place the leads of the multimeter on the TP/TH and TP
terminals on the valve as shown.
With the switch in the “ON” position, the readings should
be approximately 190mV DC (this an average reading) or
greater for proper Thermopile operation.
The main burners may not come ON if the readings are
less than 145mV DC.
If a thermostat has been installed. Place the
ON/OFF/THERMO switch in the THERMO position; place
the leads of the multimeter on the TP/TH and TH terminals
on the valve or on the connections at the thermostat.
MV reading should be higher than 190 mV DC for proper
valve operation.
THESE READINGS SHOULD BE CONSTANT WITH NO
FLUCTUATION.
When using a S.I.T EUROSIT 630 SERIES gas valve, place
one lead from the multimeter on the thermocouple lead and
the other lead into the adapter located on the back of the
valve, there are two blue wire a inserted into this adapter.
2 to 6mv DC
THERMOCOUPLE
CHECKING
THERMOCOUPLE FOR
PROPER VOLTAGE
Place one lead from the
multimeter on the
thermocouple lead, and the
other lead from the
multimeter on the back of
the valve where the blue
wire is soldered to the valve.
These readings should be
between 8 and 16mV DC.
If these readings are 2 to 6
mV DC, the Thermocouple
should be replaced
Sherwood Industries Ltd. ENVIRO PAGE 6
2) PILOT WILL NOT STAY
LIT
Use a manometer on the inlet
side of the valve to measure
gas pressure. Adjust inlet
pressure or contact your gas
supplier.
Make sure the gas pressure is
correct for type of fuel you are
using.
SEE PAGE 5 FIGURE 7.
Thermocouple should be the
same height as the pilot hood.
Make sure pilot flame is
engulfing the top 3/8” of the
thermocouple.
SEE PAGE 2 FIGURE 2.
Adjust pilot as required.
Check for clogged pilot
injector.
Make sure thermocouple
connections on valve are
tight.
DO NOT OVER TIGHTEN!!!
Thermocouple connections
should be hand tight plu1/4
turn.
Clean thermocouple ends
with Emery cloth or an
abrasive sponge.
DO NOT USE A METAL FILE.
Replace if damaged.
Make sure the thermocouple
line has no kinks and is clean
on both ends. Also check the
thermocouple for damage.
Using a multimeter, insert
adapter between valve and
thermocouple, if the readings
are less than 2 TO 6 mV DC,
replace thermocouple.
SEE PAGE 6 FIGURE 8.
Make sure the thermocouple
has proper voltage (DC
VOLTAGE).
Sherwood Industries Ltd. ENVIRO PAGE 7
S.I.T EUROSIT MODULATING 630 SERIES
Sherwood Industries Ltd. ENVIRO PAGE 8
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