Yunca Gas PIAZZA Installation and operation manual

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PIAZZA
All SEASONS PATIO
HEATER
AUGUST 2010
OPERATIONS, MAINTENANCE
& WARRANTY INFORMATION
PLEASE RETAIN THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE.

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CONTENTS
Introduction Pg. 2
Assembly of Heater Pg. 3
Installation Pg. 4
Operating Instructions Pg. 6
Servicing Pg. 7
Warranty Information Pg. 8
Injector Sizes Pg. 8
Warranty Registration Pg. 9
INTRODUCTION
Congratulations on purchasing your YUNCA PIAZZA ALL SEASONS
PATIO HEATER.
Please fill out the warranty registration card and return it promptly.
This instruction manual should stay with the appliance, and is for the reference of the
user and service person.
Only authorised service technicians should undertake any repairs or maintenance on
this product.
It is recommended that the Heater has an annual maintenance check
to ensure correct, long term operation.
WARNING: Do not store or use aerosols or other flammable materials
near this appliance.
WARNING: The Yunca All Seasons Patio Heater is an unflued gas appliance so
adequate ventilation must always be provided to ensure safe efficient use. For
installation instructions see page four.
To assemble your heater please refer to the following page.

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ASSEMBLY OF HEATER
1/ BOLT LEGS TO LEG & COLUMN SUPPORT
2/ BOLT LEGS TO BASE
3/ SLIDE CYLINDER ON TO POLE
4/ POSITION COLUMN PIPE TO SOCKET
5/ ALIGN HOLES SO THAT THE BOLT CAN PASS
THROUGH
6/ SECURE POLE INTO POSITION USING LOCK NUT
7/ FASTEN BOTTLE SUPPORT LEG USING WINGNUT
8/ BOLT DOME ONTO TOP SECTION
Bracket
Base Plate
Leg and Column
Support Gas Pipe
Lock nut
Bottle Support Leg
Wing Nut
Column
Washer
Hose Connection
.
Wing N
uts
(3)

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INSTALLATION and SAFE OPERATION
WARNING: As the Yunca PIAZZA All Seasons Patio Heater is an unflued appliance,
adequate ventilation must always be provided.
The heater will function well outside, but should only be used when wind speeds are
below 8km/h when heater is turned down or 16km/h when heater is on full.
The heater will effectively heat a radius of around 3m so its position should be chosen
to allow efficient use of heat without impeding peoples’ movement.
WARNING: The clearances shown below are to be maintained at all times, extra care
should be taken when heater is used under tarpaulins or in marquees.
The base of the heater is filled with sand before assembly. This improves stability of the
Patio Heater when the LPG bottle is low.
This heater should be used in accordance with “Gas Installation Code AG601",
and/or any local authority rules.

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Each Yunca PIAZZA All Seasons Patio Heater is factory set to the appropriate
operating pressure for the gas type with which it was factory equipped. If gas
pressure requires adjustment, or a gas type conversion is required, the operating
pressure can be tested at the test nipple on the side of the BM 733 control.
Operating pressure is adjusted at either the LPG or NG in line regulator.
Gas Type, Pressures and jet sizes appear on data plate on the Patio Heater.
Pressures 2.75kpa (LPG) 1.0kpa (NG).
Main jet sizes 1.6mm(LPG) 2.8mm(NG)
Pilot jet sizes 0.23mm(LPG) 0.35mm(NG)
Input 36MJ/hr
When running on Natural Gas the heater can be left mobile and connected to an
approved “bayonet” fitting, or may be permanently mounted and piped.
If the heater is being installed permanently connected to the supply, a manual
isolating valve should be installed as close as is practical to the appliance.
To get the maximum life from this product we suggest that it is covered when
stored.
The Piazza All Seasons Patio Heater uses the BM733 control valve, a functional
view of this is shown below.
Legend to functional diagram
1. Valve body, top section 6. Disk valve 11. Pressure test nipple
2. Valve body, bottom section 7. Flame failure device 12. Main gas inlet
3. Control knob 8. Pilot gas filter 13. Main gas outlet
4. Min. Setting screw 9. Piezo hammer 14. Pilot gas outlet
5. Max. Setting screw 10. Piezo crystal 15. Thermocouple
Connection.

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OPERATING
Lighting instructions
1. Ensure that bottle is connected and
supply valve open (LPG).
2. Press the control knob in and turn to
pilot setting.
3. Continue to hold the control knob in (N.B. if the heater has been unused for
a period of time you may need to allow up to one and a half minutes for
air to purge from gas line). Slightly tilting the heater will assist the air to
purge.
4. While still holding the control knob in, turn to “star” setting (an audible click
will be heard).
5. The control knob must be held in at the “star” setting for a further 20
seconds to allow the flame failure device to engage.
6. If the pilot has not ignited, repeat the procedure.
7. Release the control knob (slowly) and turn to the flame setting required.
Changing a bottle (LPG).
When the flame turns abnormally yellow and becomes smaller it is time to change
the gas bottle. To do this simply slide the round cylinder cover up the main stem
to expose the gas cylinder.
Shut off gas supply at the gas bottle. Remove the leg that is held on with a
wing nut. Disconnect regulator from the bottle and exchange bottles.
Dome Removal.
The reflective dome is designed to be easily removed so the Patio Heater can be
wheeled through doorways etc.
WARNING: This should only be done after the heater has been off for a sufficient
enough time to fully cool down.
Abnormal performance.
If at any time the Patio Heater exhibits any problem or abnormal noise it should
be immediately turned off. The Patio heater should be checked and tested by
authorised service technician before being used.

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SERVICING
CAUTION: Only authorised service technicians should undertake any repairs or
Maintenance on this product.
A detailed drawing of the gas components in this product is shown below. Part numbers
can be used to order replacement parts, if needed. The “Gas ID” file on our website
product manuals page (www.yunca.co.nz) may also assist in identifying spare parts.
To access these components the perforated sheet metal cylinder that surrounds the
control must be removed. This is done by removing the screws top and bottom and the
channel section pilot pipe cover.
As with all gas appliances, regular servicing will improve the trouble free operation of
this appliance. This service should cover the following
- Leak test all joints
- Check operating pressures
- Clean main and pilot orifices
- Clean main burner venturi as insects and dirt may gather there.
- Inspect flexible gas hose
- Brush any soot etc. that may have gathered on stainless steel mesh.
Please fill out the warranty card (page 9) and return it to Yunca.

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Warranty:
The Yunca PIAZZA All Seasons Patio Heater is covered by a limited two-Year Warranty
against defects in materials and workmanship.
All gas components, including control, burner, pilot assembly, tubing, regulator and hose, are
warranted for a period of one year from date of purchase.
Damage caused by neglect, improper use, acts of God, theft, or any other indirect, incidental
cause are not covered by this warranty.
This warranty is void if the recommended service schedule is not implemented and carried out
by a suitably qualified person (refer servicing, page 6).
Limitation of Liabilities
Yunca Heating hereby waivers any liability for incidental and consequential damage directly or
indirectly sustained, or for any loss caused by the application of this product not in accordance
with the current printed instructions.
Our liability is expressly limited to replacement of defective goods as per above warranty. Any
claim shall be deemed waived unless made in writing to us within 30 days from the date that it
was or reasonably should have been discovered.
Injector Sizes:
GAS TYPE MAIN JET PILOT JET
NATURAL 2.80mm diameter 0.35mm diameter
L.P.G. 1.60mm diameter 0.23mm diameter
PACKING PARTS PATIO HEATER
TICK
6524 PATIO SPUN ALUMINIUM DOME (860MM DIA)
0007D M6 STAINLESS WING NUT (X 3)
MAIN GAS BODY
6530PST BASE
6545PST BASE PLATE
6532C REMOVABLE LEG
6531C LEG (X 3)
6536PST LEG CLAMP BRACKET (X 3)
6535PST LEG PLATE & COLUMN PLATE ASSM
0035 M8 X 16 SET SCREW FRAME BOLT (X 6)
0004, 0022,
0004D,0032
M8 X 110 BOLT, WASHER, NUT & WING NUT
ASSY
0022 M8 SPRING WASHERS (X9)
0004 M8 NUTS (X 9)
0036C M6X26MM ALLOY FLAT WASHER DOME x6
0007D M6 STAINLESS HEX NUTS (X 3)
REGULATOR
NATURAL GAS KIT
DATE: SIGNED:___ ____________

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CUSTOMER COPY
YUNCA PIAZZA All Seasons Patio Heater WARRANTY REGISTRATION:
Serial No. Gas type: Purchase Date:
Purchasers’ Name:
Purchasers’ Address:
City: PostCode: Telephone: (0 )
Where Purchased:
Installed By (If permanent installation) Date
Manufactured in Dunedin by
Yunca Gas
PO Box 500
Dunedin 9054
Ph [phone]
Email [email protected]
Cut along this line:
This section must be returned within 10 days of purchase.
Serial No. Gas type: Purchase Date:
Purchasers’ Name:
Purchasers’ Address:
City: PostCode: Telephone: (0 )
Where Purchased:
Installed By (If permanent installation) Date
Return to: Yunca Heating
PO Box 932
Invercargill 9840