Slant/Fin VHS-180 - Manual (Page 27)

V
ICTORY
II
VHS Models 27
BEFORE FIRING BOILER, make these checks:
1. System is full of water. Air is vented or purged.
2. Relief valve is installed in accordance with ASME Boiler and
Pressure Vessel Code, Section IV. Valve opening is not closed
or reduced in size.
3. Venting is installed according to instructions under “FLUE GAS
VENTING REQUIREMENTS”.
4. All wiring is completed, following applicable wiring diagrams.
5. Using soap solution, check for gas leaks in all gas piping from
meter to boiler pilot and manifold. DO NOT use open flame.
2. Initial Start
Safe lighting and other performance criteria were met
when testing various gas manifold and control assemblies
used on the Victory
II Series Boilers under the ANSI
Z21.13- latest edition.
Instructions
Follow the lighting instructions in this manual. These instructions
are also attached to the boiler.
SAFETY INFORMATION
For Your Safety Read Before Operating
WARNING: If you do not follow these instructions exactly, a fire
or explosion may result causing property damage, personal
injury or loss of life.
A. This appliance is equipped with an ignition device which auto-
matically lights the pilot. DO NOT try to light the pilot by hand.
B. BEFORE OPERATING smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
• DO NOT try to light any appliance.
• DO NOT touch any electric switch: DO NOT use any phone
in your building.
• Immediately call you gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
C. DO NOT use this appliance if any part has been under- water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been underwater.
OPERATING INSTRUCTIONS
1. STOP! Read the safety information above on this page.
2. Set the thermostat to lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device which auto-
matically lights the pilot. DO NOT try to light the pilot by hand.
5. Turn gas control knob clockwise to “OFF”. DO NOT force.
6. Wait five (5) minutes (longer for propane) to clear out any gas.
Then smell for gas, including near the floor. If you smell gas,
STOP! Follow “B” in the safety information above on this page.
If you don’t smell gas, go to next step.
7. Turn gas control knob counterclockwise to “ON”.
8. Turn on all electric power to the appliance.
9. Set thermostat to desired setting.
10. If appliance will not operate, follow the instructions “To Turn Off
Gas To Appliance” and call your service or gas supplier.
To Turn Off Gas to Appliance
1. Set thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to be
performed.
3. Turn gas control knob clockwise to OFF. DO NOT force.
3. Burner Adjustment
A. Adjust gas input rate:
1. Consult gas supplier for higher heating value* of gas
(Btu/cu. ft.).
2. Set thermostat high enough so that boiler will remain on
while checking rate.
3. Measure manifold pressure at 1/8" tapping. Correct mani-
fold pressure for gas used is printed on boiler rating plate.
NOTE: Gas pressure may be adjusted by turning pressure
regulator screw on combination gas valve (turn clockwise to
increase pressure, counterclockwise to decrease pressure).
a. Input for PROPANE is approximately at rating shown on
rating plate when manifold pressure is 9 1 ⁄
2
" water column.
b. Input for NATURAL GAS is approximately at rating
when manifold pressure is 3 1 ⁄
2
" water column, but
should be checked on the gas meter: Btuh Input =
Btu/cu. ft. x cu. ft. metered in 3 minutes x 20
Example 1:
For 1000 Btu/cu. ft. gas, this becomes:
Btuh Input = cu. ft. metered in 3 minutes
x 1000 Btu/cu. ft. x 20
Example 2:
For 1050 Btu/cu. ft. gas, this becomes:
Btuh Input = cu. ft. metered in 3 minutes
x 1050 Btu/cu. ft. x 20
4. The higher heating value* of gas varies substantially for differ-
ent localities. Consult with Slant/Fin’s Technical Service Dept.
for re-orificing procedures if any of the following apply:
a. Boiler (burner) is overfiring. CAUTION! National Fuel
Gas Code (ANSI Z223.1-latest edition) does NOT
permit firing at a higher input rate than the input rate
indicated on the boiler rating plate in order to avoid
hazardous conditions such as explosion or carbon
monoxide poisoning.
b. Poor higher* heating value of gas is causing the actu-
al input to be substantially lower than the rating plate
indication.
* “Higher heating” value of gas is commonly known as
“heating value”. Figure 21.