Chesney's CUBB18 Alchemy Operating instructions

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1
Decorative Fuel Effect Appliances
Technical Manual
PIN: 0558BS5932
User and Installation Instructions
Chesney’s Universal Basket Burner18”
Burner Code: CUBB18
Available in Natural Gas or LPG.
NOTE –
Chesney’s 5 piece large log set are for Natural Gas Models only
Chesney’s 12 piece small log setare for LPG Models only

2
Contents
Section
Pages
1
Unpacking / Unit Parts
3
2
Technical Data
4
3
Installation Parameters
5
-
6
4
Installation
7
-
9
5
Burner Information
10
-
31
6
Clay
Granules
32
7
Fibre coal / Log placement
33
-
39
8
Commissioning the fire unit
40
9
Briefing and handoverto the customer
41
10
Servicing
42
-
45
11
Fault finding
46
12
User Instructions
47
-
56
Fireguards
47
Lighting the appliance
49
-
54
Changing th
e Batteries
55
Cleaning
56
13
Installer checklist
57
14
Dealer and Installer Information
57
Annual Service Record
58

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1. Unpacking
Remove the appliance from its packaging, and check that it is complete and
undamaged.
If satisfied by the condition and the contents is as specified,proceed with the
installation.
The installation should onlybe carried out by a competent person and all gaswork
must be carried out by a GasSafe Registered person in accordance with national
and local regulations for both gasand electricity (If required).
The installation must comply with local and national building regulations.
For the Republic of Ireland, reference should be made to IS813 and ICP3 and any
guidance notesfrom Bord Gais.
Failure to comply with the regulations nullifies ALL guarantees.
Unit Parts
NG Logs (If supplied) Embers (If supplied Clay Granules Coals 2xBags
with NG Logs) 1kg bag (If supplied)
LPG Logs
(If supplied)

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2. Technical Data
Specifications for CUBB18
Oxypilot AssemblyMarking
Natural Gas Burner : NG 9057, LPG Burner
–
LPG 9221
Gas Connection Size
8.0mm O.D. tubing
Minimum FlueDiameter (Millimetres/Inc
hes)
178.0/7.0
Minimum Flue Height (metres)
3.0
ApplianceMass (kilograms)
3.6
Gas
Type Gas Category, Type And Supply Pressure Countries of Destination
AT BE CH CY CZ DE DK EE ES
FI
FR GB GR HU
IE
IT
LT
NG
I
2H - G20 at 20mbar 











I
2E- G20 at 20mbar 
I
2E+ - G20G25at2025mbar 

LPG
I
3P- G31 at 37mbar 








I
3+ - G30G31at 28-3037mbar










I
3B/P –G30G31 at 30mbar 










Gas
Type Gas Category, Type And Supply Pressure Countries of Destination
LU LV NL NO PL PT RO SE
Sl
SK TR
NG
I
2H - G20 at 20mbar 







I
2E- G20 at 20mbar 


LPG
I
3P- G31 at 37mbar 



I
3+ - G30G31at 28-3037mbar 


I
3B/P –G30G31 at 30mbar







Gas
Type Gas Category, Type And Supply Pressure
Injector
(1per appliance) Heat Input
kW, Gross
(High / Low)
Burner Pressure
(Hot) mbar
(High/Low)
Marking Size
Remote (GV30/GV60)
NG
I2H - G20 at 20mbar 180
Multiholed
7x1.8mm 13.0/7.4 3.8/1.6
I2E- G20 at 20mbar 180
Multiholed
7x1.8mm 13.0/7.4 3.8/1.6
I2E+ - G20G25at2025mbar 180
Multiholed
7x1.8mm 13.0/7.4 3.8/1.6
LPG
I3P- G31 at 37mbar 18S
Single Hole
1.8mm 11.0/8.2 24.6/14.6
I3+ - G30G31at 28-3037mbar 18S
Single Hole
1.8mm 11.0/8.2
19.0/11.3 (G30)
24.6/14.6 (G31)
I3B/P –G30G31 at 30mbar 18S
Single Hole
1.8mm 11.0/8.2 19.0/11.3
Recommended Opening Size
Model
Height Width
CUBB18
[NG]
580mm 580mm
CUBB18
[LPG]
545mm 580mm
NOTE – Othertypesof larger flue/opening size combinations(and canopies) can
be used provided that the combustion productsare cleared. If in doubt contact a
flue specialist for advice.

5
3. Installation Parameters
The fire unit must be installed and used in accordance with these
instructions.
Thisappliance isfor decorative purposes.
For your safety it islaw that all gasappliancesmust be installed by a
competent person, in accordance with the current gas safety
regulations applicable in the country of use.
The installation must be carried out in accordance with the relevant
local and national specifications and comply with building regulations.
The following must comply with the requirementsand satisfy Building
Regulations – Approved Document J.
Builders opening and Fire Chamber must be constructed of
non-combustible material
Hearth and clearance dimensions
The minimum flue opening is 178mm (7”) diameter 250 sq.
cm. (38.5 sq. inches) and a minimum height of 3m (10ft),
provided the flue which servesthisappliance.
An in-line fan that complies with BS 5440: Part 1 can be used to
improve flue draught.
NOTE - The flue must not be shared with anyother appliance.
Prior to installation, ensure the compliance of local distribution
conditions (E.g. The type of gas, pressure and the adjustment of the
appliance)are compatible.
The builder's opening or fireplace opening must be constructed of a
non-combustible material.
Before the fire is installed, the chimney should be swept and a flue
test in accordance with National Regulations should be carried out.
The flue must be fitted in accordance with National Regulations,
damper plates or flue restrictors must be removed or fixed
permanently in the fully open position.
The gasconnection must be in accordance with National Regulations.
The pilot light and flame sensing system fitted to this fire is also an
atmosphere sensing device, thisisnot adjustable and must not be put
out of action. If the pilot light is damaged or faulty it should be replaced
only with the original identical unit supplied by Chesney’sLimited.
The room where the appliance is to be fitted must have a permanent
air vent with a minimum effective area of 100cm sq. to the outside air
in accordance with National Regulations and must be checked on a
regularbasisto ensure there isno obstruction.

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This appliance must not be fitted in any room where steam is present
(e.g. Bathroom).
The appliance is not fitted with an integral guard. It is recommended
that a guard be used for the protection of young children, the elderly or
infirm and also for normal use conforming to BS8423:2002, such that
accessto the flame isminimised.
It is advised not to stand too close to the appliance for prolonged
periods of time; loose clothing is particularly at risk of burning due to
the presence of an unguarded flame.
It isalso advised against placing combustible materials directly in front
of the appliance. Floor coverings, such as carpets, are considered to
be acceptable.
Due to the newnessof materials, the fire may give off a slight smell for
a period of time after commissioning. This is quite normal and any
odoursshould dissipate within a fewhoursofoperation.

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4. Installation
Check flue soundness
A smoke pellet can be used to test the flue for effectivenessof the draw,also
checking other parts of the dwelling (including loft areas) for leakage, down-
draught etc.
If the flue is unsatisfactory seekadvice from a flue specialist.
NOTE – The smoke pellet gives a fair idea on the draw, but isno guarantee
that the productsof combustion from the fire unit will clear, this isalso to be
tested after the installation by carrying a spillage test.
Below is a guide to the flue diameter and minimum flue heights for different
size openings.
NOTE - This table is a rough guide, due to some complex flue systems in
some dwellings the suggested table may still be inadequate, contact a flue
specialist for more advice.
Opening Width
(mm) OpeningHeight (mm) Opening Width x Height
Floor to flue top height / Flue Diameter
Height
3.0m Height 4.5m Height 6.0m Height 9.0m Height 15.0m
350 550 1925cm2 175 Dia. 175 Dia. 175 Dia. 175 Dia. 175 Dia.
400 550 2200cm2 175 Dia. 175 Dia. 175 Dia. 175 Dia. 175 Dia.
460
460
2116cm2
175
Dia.
175
Dia.
175
Dia.
175
Dia.
175
Dia.
460 550 2530cm2 200 Dia. 175 Dia. 175 Dia. 175 Dia. 175 Dia.
460 610 2806cm2 200 Dia. 200 Dia. 175 Dia. 175 Dia. 175 Dia.
610
460
2806cm2
200
Dia.
200
Dia.
175
Dia.
175
Dia.
175
Dia.
610 610 3721cm2 250 Dia. 225 Dia. 200 Dia. 200 Dia. 175 Dia.
610 760 4636cm2 300 Dia. 250 Dia. 250 Dia. 225 Dia. 200 Dia.
760 460 3496cm2 225 Dia. 225 Dia. 200 Dia. 200 Dia. 175 Dia.
760 610 4636cm2 250 Dia. 250 Dia. 250 Dia. 225 Dia. 200 Dia.
760
760
5776cm2
300
Dia.
300
Dia.
250
Dia.
250
Dia.
225
Dia.
760 910 6916cm2 350 Dia. 300 Dia. 300 Dia. 250 Dia. 250 Dia.
910 460 4186cm2 250 Dia. 225 Dia. 225 Dia. 200 Dia. 200 Dia.
910
610
5551cm2
300
Dia.
300
Dia.
250
Dia.
250
Dia.
225
Dia.
910 760 6916cm2 350 Dia. 300 Dia. 300 Dia. 250 Dia. 250 Dia.
910 910 8281cm2 350 Dia. 350 Dia. 300 Dia. 300 Dia. 250 Dia.
910
1070
9737cm2
*********
350
Dia.
350
Dia.
300
Dia.
300
Dia.
1070 460 4922cm2 300 Dia. 250 Dia. 250 Dia. 225 Dia. 200 Dia.
1070 610 6527cm2 300 Dia. 300 Dia. 300 Dia. 250 Dia. 250 Dia.
1070
760
8132cm2
350
Dia.
350
Dia.
300
Dia.
300
Dia.
250
Dia.
1070 910 9737cm2 ********* 350 Dia. 350 Dia. 300 Dia. 300 Dia.
1070 1070 11449cm2 ********* ********* 350 Dia. 350 Dia. 300 Dia.
1070
1220
13054cm2
*********
*********
*********
350
Dia.
350
Dia.
1220 460 5612cm2 300 Dia. 300 Dia. 250 Dia. 250 Dia. 225 Dia.
1220 610 7442cm2 350 Dia. 300 Dia. 300 Dia. 300 Dia. 250 Dia.
1220
76
0
9272cm2
*********
350
Dia.
350
Dia.
300
Dia.
300
Dia.
1220 910 11102cm2 ********* ********* 350 Dia. 350 Dia. 300 Dia.
1220 1070 13054cm2 ********* ********* ********* 350 Dia. 350 Dia.
1220 1220 14884cm2 ********* ********* ********* 350 Dia. 350 Dia.
1520 460 6992cm2 300 Dia. 300 Dia. 300 Dia. 250 Dia. 250 Dia.
1520
610
9272cm2
*********
350
Dia.
350
Dia.
300
Dia.
300
Dia.
1520 760 11552cm2 *********
*********
350 Dia. 350 Dia. 300 Dia.
1520 910 13831cm2 *********
*********
*********
350 Dia. 350 Dia.
1520
1070
16264cm2
*********
*********
*********
*********
350
Dia.
1520 1220 18544cm2 *********
*********
*********
*********
*********

8
Check Ventilation
Ensure the room the appliance isto be fitted has suitable ventilation the size
and type of ventilation should take into account any other gas appliance in
the room.
The room where the appliance is to be fitted must have a permanent
air vent to the outside air in accordance with Local and National
Regulations. The air vent must be checked on a regular basis to
ensure there is no obstruction.
Fitting the fire unit
The burner unit has been supplied in an assembled state with exception of
clay granules and coals/logs. All Chesney’s fire units have been tested to
ensure safety.
Ensure that the gas supply is capable of delivering the required amount of
gas, and is in accordance with the rules in force.
When laying the gas pipe work check the fire unit’s gas inlet location to
ensure a smooth run.
NOTE – All gas work must be carried out by a qualified gas installer to all
relevant regulations.
An isolation valve or valves must be fitted adjacent to the appliance in
accordance with national regulationsthisisto allow the complete removal of
the burner control assembly, for maintenance or repair.
Chesney’sfire baskets (Sold separately) are supplied with a grate; thisis not
needed for gasappliancesand must be removed.

9
On certain types of fire baskets (mainly curved baskets) both grate structure bars
must be removed to enable the fitting of the burnerunit.
Secure the fire unit to the fire basket.
When fitting the fire ensure that the unit isfitted under the flue opening so that no
part of the fire bed protrudesbeyond the fireplace opening.
Before connecting the fire unit purge the pipesfrom air and debris.
Light the fire on maximum and run forapproximately 20mins and checkthat the hot
burner pressure is in accordance with the values stated on page 4 within the
appliance specifications.
The Burner isfitted with a metal data plate supplied with the fire unit and isto
remain with the fire unit for annual services.
Image of the data plate shown below:-

10
5. Burner Information
Remote / Manual versions

11
Dimensions

12
Control Valve – Mertik GV34 / GV36
NOTE – The GV36 doesnot have a motor attached butcan be upgraded to the GV34.

13

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Control Valve – Mertik GV60 (Fully remote controlled)

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Features and Options
•No external electrical power required.
•Used withstandard thermocouple and standard ODS pilot
•Flame height adjustment withremotecontrol or switch
•Flame height knob may be adjusted manually, if required
•AGA, CGA and CE approvals
•Compact design withlargecapacity
•Thermoelectric flamefailure device
•Safetyinterlock
•Pressure regulator or throttle
•Minimum rate selling withfixed or adjustable orifices
•Pilot gas adjustment screw
•Screen in thegas inlet area
•Side outlet for second burner (not motor controlled)
GV34, 36 and 60 models require no external electrical power to operate. The battery-powered
motor allows main gas adjustment via anelectric switch or remote.
Inthe eventof a battery failure, the flame heightmaybe adjusted by hand. The GV34is
configured for on-off lowtohigh mainburner function. The thermoelectric flamefailure device
functions with all standard thermocoupleand ODS pilot burners (no powerpile necessary).
TheGV34, 36, 60 Series multifunctional controls have been designedtobe as interchangeableas
possible. This allows the different functions to be realizedin one heating appliance.

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Operation
Lighting Procedure
1) Turn Knob A (figure 1) slightlyleft towards theignition position until reaching stop,
press down and holdfor fiveseconds (onlypilot gas flows).
2) Continue pressing down knob Awhile turning further left to activate piezo, continue to hold
down for 10 seconds after pilot has beenlit. If pilot does not light, steps 1 and 2 can be
repeatedimmediately.
3) Uponlighting, release knob and turn further left to ON position. Pilot gas flows and main
gas flows inaccordance to the setting (knobB).
Adjusting the flameheight
Toturn the fire on and/or toincrease theflameheight,press theON button of theremote
handset. Continue pressing until the desired flame heightis obtained. Press andhold the OFF
button toreversethe procedure. Thereceiver is equipped with a built-indelay, recognizable by
the flickering light, tofacilitate fineadjustment ofthe flame.
The motorized valveis equipped with a slip clutch, allowing manual adjustment of maingas by
turning knobB.
Shut-off Procedure
1) Turn knob Aright until reaching stop. In this position onlypilot gas flows.
2) To shut off the valvecompletely, pr ess down slightlyand continue tur ning right from pilot
positionto theOFF • position. The safety interlock prevents re-ignition of the pilot flame
until the thermocouplehas cooled downsufficiently(elapsed time will vary based onthe
thermocouple type).
3) Switching off theremote is not necessary.

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