Escea St500 User manual

630091_6_Manual_InstallationͲService_ST500_NZ

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ST500 Direct Vent Gas Fireplace

Installation Manual

NEW ZEALAND EDITION



Important:

The appliance shall be installed in accordance with;

• This installation instruction booklet

• Local gas fitting regulations

• Municipal building codes

• Electrical wiring regulations

• NZS 5261, Gas installations

• Any other relevant statutory regulations.

• Must be installed by a qualified person

Manufactured by: Escea Ltd, PO Box 5277 Dunedin NZ, Ph: 03 479 0302, e: info@escea.net

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Note:

THERE ARE A FEW THINGS TO CONSIDER BEFORE INSTALLATION

• Cavity Dimensions and Clearances

• MUST be installed a 100mm minimum off the floor or nearest horizontal surface.

• Coupling of flue to fire

• Coupling of gas lines to fire

• Fixing the fire to cavity

• Electrical mains socket at rear left corner of the cavity, to accommodate the power

transformer

• Isolation switch for electrical transformer.

• Gas pipe placement to the front left of the cavity.

• The ST900 electronic control system is designed to work within the temperature range of

0°C to 60°C, with a humidity level that is non condensing. This is to ensure safe

operation of the electronic and gas control system.

If the fireplace is subjected to an environment with temperatures very close to or

exceeding these temperature limits (irrespective of if the fireplace is on or off at the time)

the fireplace may not start up until the temperature returns back to within the operating

range.

To remedy this the environmental temperature should be addressed and the fireplace

control system given time to adjust accordingly. The fireplace should then function

correctly.

It would be prudent to consider these operational limits during the installation planning

stage. Protecting the installed fireplace from low external ambient temperatures and cold

drafts through the use of approved modern building methods and materials will help

ensure that the required operating environment is maintained.



WARNING:

Failure to follow these instructions could cause a malfunction of the fire, which,

could result in death, serious bodily injury, and/or property damage. Failure to follow

these instructions may also void insurance cover and/or product warranty.

Installation:

Installation must be carried out by a registered installer who, on completion of the

installation, must issue a certificate of compliance, in accordance with national and/or local

codes. If a certificate of compliance is not issued then the Escea warranty may be void.

Warranty Repair and Annual Servicing:

Warranty repair work must be carried out by a recognised Escea gas fire technician. It is

recommended that recognised Escea Gas fire technicians are also used to carry out annual

servicing requirements (particularly during the warranty period). For contact details of

authorised Escea technicians in your area, please contact the retailer from whom the

appliance was purchased.

This product must be installed according to these instructions and in compliance with all

relevant building, gas fitting, electrical and other statutory regulations (eg. NZS 5261). Any

shortcomings in the appliance and flue installation will be the responsibility of the installer,

and Escea will not be accountable for any such failings or their consequences.

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630091_6_Manual_InstallationͲService_ST500_NZ

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Recommended Installation Process:



The following diagram illustrates the steps required to install your gas fire, and the trades

required at each stage.

The sequence in which you choose to do these tasks will vary depending on your individual

scenario. Please read these instructions fully before proceeding with the installation.

Leave the installation of the fascia panels until the very end of the installation and

commissioning to avoid damage to the fascia panels.



Builder

1.ConstructFrame(Section1.0to6.0)

Gasfitter

5.InstallFlue+FlueRestrictorifrequired(Section13.0)

6.Testfireandverifyflamepatternisacceptable

7.CoverͲupfireusingpackaging(Section16.0)

Electrician

2.InstallElectricalconnection(Section15.0)

Gasfitter

3.InstallGasPipe(Section7.0to8.0)

4.InstallFire(Section9.0to12.0)

Ensurethatyouleaveagapbetweenthestudworkandfire

chassistoacceptthewallliningifapplicable

Builder

8.Gib/linechimneybreast

Gasfitter

9.CommissiontheGasFire(Section17.0)

630091_6_Manual_InstallationͲService_ST500_NZ

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Contents:

1.0 Product Description

2.0 Creating the Cavity

3.0 Hearth and Floor Clearances

4.0 Wall Linings

5.0 Vertical Clearances

6.0 Corner Installations

7.0 Laying Gas Pipe

8.0 Connecting Gas Pipe

9.0 Power Supply

10.0 Fixing the Fire to Base and Wall

11.0 Removing the Firebox Glass

12.0 Installing the Flue System

13.0 Fitting the Flue Restrictor

14.0 Converting Gas Type

15.0 Placing the Fuel Bed Media

16.0 Checking Operating Pressure

17.0 Covering up the fire

18.0 Commissioning the Fire (fitting the fascia)

19.0 Operating Instructions

20.0 Sounds and Smells

21.0 Annual Service Check

22.0 Installation Check list

23.0 Warranty Terms and Conditions

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630091_6_Manual_InstallationͲService_ST500_NZ

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585.0

900.0

30.0°

Ø203

631.1

816.7

352.2

Flue Diameter

62.7

352.2

45.0°

504.4

239.8

112.4 252.2 252.2

1.0 Product Description:

The Escea ST500 decorative gas fire is designed

to be built into a cavity. The appliance is flued via

Simpson Duravent Pro 5” Direct Vent, available

from your Escea distributor or retailer. The user will

control their fire with the Radio Frequency (RF)

remote.

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2.0 Creating the Cavity:

The dimensioned drawing below shows the size of opening that must be created to fit the

ST500. The wall directly above the fire should be finished / gibbed / lined after the fire has

been installed, unless there is an access hatch or the chase is open to the ceiling cavity,

which allows the flue to be installed after the wall has been lined.



Note: It is not necessary to line the cavity.



Thewallandframeworkin

frontofthefiremustnot

exceed100mminthickness,

thisincludesgibboardor

anywalllinings.Thisisto

ensurethereisatleast

25mmgapbetweenall

fluingcomponentsandany

combustiblematerial.

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Considerations for creating the cavity:

If installing the ST500 into a purpose built chimney breast or

chase which is not open to the roof space of the building, it

may be appropriate during the planning stage to consider the

installation of additional vents.

Heat otherwise lost through the outer skin of the fireplace and

flue system into the cavity of the chimney breast or chase

may be recovered into the room by placing two air vents in

the cavity or chase. By placing one vent at or just above floor

level and the other near the ceiling of the room will induce

natural convection and prevent heat build up in the cavity and

subsequently recover some of the heat into the room.

3.0 Hearth and Floor Clearances:

There should be at least 30mm between the. bottom of the ST500 fascia and any horizontal

surface below, for example hearths and floors.

3.1 Wall and Cabinet Clearances:

There must be a minimum of 100mm from the sides of the fascia to any protruding side

walls or cabinetry.

4.0 Wall Linings:

The wall board that lines the outside of this opening can be normal dry wall

(Plaster Board) and does not need to be non-combustible providing that it does not come

any closer to the fire than the dimensions shown in section 2.0. Note: The temperature of

the wall lining directly above the heater does get warm and hence may discolour paint

finishes that are susceptible to temperature damage or distort vinyl wall coverings.

5.0 Television Positioning Considerations:

It is becoming common practice for consumers to mount flat screen TV’s above their gas

fireplace.

Most TV manufacturers have specified in their instructions that the TV should not be

installed on, near or above a heat source. For this reason TV location decisions rest solely

with the householder and Escea will not be held liable for any adverse affects on a TV

located near to an Escea fireplace that may be caused by heat.

The drawings below are suggestions that may be used as a GUIDE for those consumers

who do decide to locate their TV above an ST500 gas fire. These drawings show ways to

reduce the amount of warm air rising off the fireplace and onto the TV.

630091_6_Manual_InstallationͲService_ST500_NZ

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50 min

500 min 500 min

100 min

500 min

50 min

500 min

Mantle Mantle

Recessed TV Flush TV with

small mantle Mantle above fire Protruding fire

The material that the wall and mantle are made from will also affect the operating

temperature of the TV so it is the customers responsibility to satisfy themselves that their

TV mounting and mantle design will not exceed the listed maximum operating temperature

of their electronic goods.

5.1 Combustible Mantle Clearances:

The diagram to the right shows the minimum and

maximum allowable size for mantles or protruding

surfaces mounted above the ST500.

Note: Escea does not recommend placement of

items on the mantles shown in the diagram to the

right. This is because of the potential for items placed on

or above the mantle to be affected by the heat rising from

the appliance.

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5.2 Non-Combustible Mantle Clearances:

If the entire installation (mantle, wall and cavity) is

constructed from non-combustible materials, the

clearances to mantles may be as shown in the shaded

area.

6.0 Corner Installations:

If a cavity is to be created

in a corner, the following

drawing gives the

minimum sizes.



7.0 Laying Gas Pipe:

Gas pipe should be sized as per the requirements of NZS5261. Gas pipe leaves the ST500

in the lower back left of the fire as shown on the previous page. The pipe sizing must be

sufficient to deliver the following volume of gas to the fire with all other gas appliances in

the home running at the same time;

ST500 = 14 Mj/hr



8.0 Connecting the Gas Pipe:

Soft copper should be run directly to fire and connected onto the regulator with flare nut

(3/8” BSP thread). The regulator that is supplied with the fire MUST NOT BE REMOVED.

Removal of the regulator, or replacing it with one not intended for use with an Escea fire,

will void the limited appliance warranty.

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9.0 Power Supply:

Whilst the cavity is being created consideration should be given to appropriate location of a

standard 3 pin, 240V power outlet to accommodate the supplied power transformer. This

must be within 1.5m of the lower left hand side of the appliance.

9.1 Locating this plug within the cavity makes the installation very neat but the provision must

be made to be able to switch the power supply off and on (electrical isolation switch) and

must be accessible after the fire has been installed. This is normally done by means of a

separate switch located outside of the cavity and wired to the plug. This will allow service

technicians to isolate the power supply before performing service work on the appliance.

9.2 The supplied power transformer cord should be run through the small hole with rounded

edges in the lower middle at the rear of the fire and connected to the panel mounted plug

pictured below.

9.3 This appliance will draw a maximum of 100mA from a 240V supply.

9.3 Optional Battery-Pack Power Supply:

If desired, an optional battery-pack can be purchased which will allow the ST500 to run

without mains power, allowing the fire to run in the event of a power cut. This battery pack

uses 3x D cell batteries.

9.4 To install the battery pack simply place the pack in the bottom left of the fire and connect it

to the plug which is located near the brass Copreci valve.

9.5 To access the battery pack, remove the fascia (described in section 17.0) and the battery

pack will be on the lower left hand side.

9.6 As the ST500 draws a small current when not in use, it is recommended to remove the

batteries if the fire will not be in use for long periods of time.

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10.0 Fixing the Fire to the base and wall:

It is a requirement that this fire be securely

fastened to the wall and base. Once the fire has

been pushed back into the correct position, use

wood screws (or other suitable fasteners) to fix the

fire to the cavity through each of the four holes

in the corners, as shown in the diagram to the right.

Note: It may be necessary to use washers on the

fasteners to securely fasten the fire to the wall.

11.0 Removing the Firebox Glass:

Pull the four hooks shown below

towards you and then away from

the glass to release the glass frame

underneath the hook. Remove all

accessories and packaging inside

the firebox. Reverse these steps to

replace the glass assembly.

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630091_6_Manual_InstallationͲService_ST500_NZ

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Flue

115

mm (REF)

30 Elbow

12.0 Installing the Flue System:

Ensure all flue components are Simpson Duravent Direct Vent Pro 5” x 8”, or a compatible

equivalent

Note: Consult Appendix A at the end of this installation manual (section 21.0) to

ensure correct length of flue is calculated.

There are two basic types of Direct Vent System installations:

• Horizontal Termination

• Vertical Termination

Use the diagrams in sections 12.5, 12.6 & 12.7 to check if your proposed flue system is

acceptable. Section 12.8 will also need to be used to determine whether the flue terminal

location meets the requirements of NZS 5261. Then use Appendix A to work out the

quantities of the flue components that are required.

12.1 Any offsets in your flue configuration should be 45°where possible.

12.2 If the flue configuration has a horizontal run, there must be a minimum 1°inclination (20mm

vertical rise per 1m horizontal run) leading upwards towards the termination.

Do not install the flue with horizontal sections sloping down towards the termination.

This could cause the fire to operate incorrectly and possibly create an unsafe

condition.

12.3 The flue must maintain the following

clearances to combustible materials;

25mm from all sides and bottom of

the flue, and 50mm from the top of

the flue.



12.4 If your flue configuration falls on or near a restriction zone boundary line in diagrams 12.5,

12.6 &12.7, it may require the restriction value from either side of the boundary line to

achieve the correct flame aesthetic, this may vary from installation to installation.

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12.5 Vertical Only Flue Diagram:



Usethisdiagramto

determinewhat

percentageofflue

restrictioninrequiredto

ensuresafeandcorrect

operationoftheST500

decorativegasfireplace.

630091_6_Manual_InstallationͲService_ST500_NZ

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12.6 Horizontally Terminating Flue Diagram:



Usethisdiagramto

determinewhat

percentageofflue

restrictioninrequiredto

ensuresafeandcorrect

operationoftheST500

decorativegasfireplace.

630091_6_Manual_InstallationͲService_ST500_NZ



12.7 Vertically Terminating flue with a Horizontal Offset:

Usethisdiagramto

determinewhat

percentageofflue

restrictioninrequiredto

ensuresafeandcorrect

operationoftheST500

decorativegasfireplace.

630091_6_Manual_InstallationͲService_ST500_NZ

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12.8 Standard Flueing Configurations:

The following flue components are available from escea in kitset form.



630091_6_Manual_InstallationͲService_ST500_NZ

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12.9 Locating the Flue Terminal:

The flue terminal must be located using the information given in the following diagram and

tables based on those in NZS 5261

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Table 16 – Minimum clearances required for flue terminals shown in figure 3

Ref. Item Minimum Clearances (mm)

Natural

draught Fan

assisted

a Below eaves, balconies and other projections:

Gas appliances up to 50 MJ/h input

Gas appliances over 50 MJ/h input 300

500 200

300

b From the ground, above a balcony or other surface (see note 6) 300 300

c From a return wall or external corner (see note 6) 500 300

d From a gas meter (M) (see 2.5.4.9 for vent terminal location of

Regulator) 1000 1000

e From an electricity meter or fuse box (P) 500 500

f From a drain pipe or soil pipe 150 75

g Horizontally from any building structure (see note 6) or obstruction

Facing a terminal 500 500

h From any other flue terminal, cowl, or combustion air intake

(see note 6) 500 300

j Horizontally from an openable window, door, non-mechanical air

Inlet, or any other opening into a building with the exception of

Sub-floor ventilation:

Gas appliances up to 150 MJ/h input

Gas appliances over 150 MJ/h input up to 200 MJ/h input

Gas appliances over 200 MJ/h input

All fan-assisted flue gas appliances, in the direction of

discharge

500

1500

300

500

1500

k From a mechanical air inlet, including a spa blower 1500 1000

n Vertically below an openable window, non-mechanical air inlet, or

Any other opening into a building with the exception of sub-floor

Ventilation:

Space heaters up to 50 MJ/h input

Other gas appliances up to 50 MJ/h input

Gas appliances over 50 MJ/h input and up to 150 MJ/h input

Gas appliances over 150 MJ/h input

150

500

1000

1500

150

500

1000

1500

NOTE-

(1) All distances are measured to the nearest part of the flue terminal

(2) Prohibited area below electricity meter or fuse box extends to ground level

(3) See 2.6.13.3 for restrictions on a flue terminal under a covered area

(4) See appendix G LPG Cylinder Locations, figure G2 and figure G3, for clearances required from a flue terminal to

An LPG cylinder. A flue terminal is considered to be a source of ignition.

(5) For gas appliances not addressed above, the design shall be certified by a suitably qualified engineer.

(6) Some gas appliances may be suitable for closer installation; refer to the manufacturer’s instructions.

12.10 Supporting the flue system:

Wall straps are required to fix the flue system in place for each installation. This will ensure

that no undue strain is placed on flue components once installed.

For a flue offset or horizontal run, it is recommended that wall straps be used to the flue

system with a spacing of 900mm between straps. Plumbers strapping / tape can be used to

connect the wall straps to the building structure where there are large distances between

the support point and the anchor point.

For vertical flue runs it is recommended that wall straps be used to anchor the flue system

with a spacing of 1200mm between straps.

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12.11 Sealing ‘through roof’ and ‘through wall’ penetrations:

For ‘through roof’ penetrations, use a Deck-tite flashing or equivalent to create a weather-

tight seal between the flue and the roof cladding.

For ‘through wall’ penetrations, this will require the use of a Wall Thimble. The Wall Thimble

will ensure you have suitable clearance from combustibles as well as sealing the

penetration. The section of the wall thimble installed on the external surface of the wall

should be sealed to the wall using a high temperature sealant such as a High Temperature

RTV Silicone or equivalent. Additional sealant is required to seal the Terminal Cap to the

external wall. A bead should be run along the edge of the Terminal that will be in contact

with the wall once installed.

12.12 Twist locking procedure:

Before connecting flue components, to ensure an airtight seal run a single 7-8mm bead of

High Temperature RTV Silicone or equivalent, on the ‘male’ end of the flue as shown in the

diagram below.

The four indentations located on the female end of the flue are designed to slide straight

onto the male ends of the adjacent flue length, by orienting the four flue indentations so

they match and slide into the four entry slots on the male ends.

Push the pipe sections completely together, then twist-lock one section clockwise

approximately one-quarter turn, until the two sections are fully locked.

Wipe off any excess sealant from the exterior of the flue joint.

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12.13 Points to note when planning the Installation of the Escea DV flue:

- This flue system cannot be cut to length. Correct lengths must be selected for each

installation. For a full list of available flue lengths, contact your Escea retailer.

- The listed length of the flue pipe is not the installed length. 1 ½” (38mm) needs to be

subtracted for each join to determine the installed length of each piece of flue pipe.

E.g. 48” length has installed length of 45”.

- All vertical measurements should be measured from the top surface of the fireplace casing

itself (not the fascia).

- When using horizontal flue runs, vertical measurements should be measured to the centre

line of the horizontal flue pipes.

- When using 90° elbows in the installation, use the diagram below to help calculate

installations horizontal and vertical distances. 1½” (38mm) will still need to be subtracted

from each join.

- If using a 45° offset in your installation, consult the chart below to select the required flue

length to give the desired offset. 1½” (38mm) will still need to be subtracted from each of

the 45° bends to allow for the joins.

- Adjustable lengths are available depending on stock levels. Contact escea for more

information.

Straight

Flue Length: Offset: Rise:

0” 5

/8”15

/8”

6” 8

/8” 18

/8”

9” 10

/8”20

/8”

12” 13” 22

/8”

24” 21

/8”31

/8”

36” 29

/8” 39

/8”

48” 38

/4”47

/8”

630091_6_Manual_InstallationͲService_ST500_NZ

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13.0 Fitting the Flue Restrictor:

If your flueing configuration requires that you fit a flue

restrictor (see graphs in sections 12.5, 12.6 & 12.7 of this

manual to find out if your configuration requires a flue

restrictor), follow the instructions below.

First, prepare the Flue Restrictor by removing and

discarding the inner rings to achieve either 60%, 70%,

80% or 90% restriction as required and hand bending the

five tabs 90°

Remove the firebox glass (if fitted), and

using a Phillips screwdriver remove the

two screws located inside the firebox as

shown.

Once the two screws are removed the

baffle will be free to slide down and

out as pictured. Ensure the firebox

paint is not scratched and that the

baffle is not damaged.

Fit the flue restrictor by pushing it up into the flue with the tabs

facing downwards as shown. Push it up into the flue until the

tabs no longer protrude into the firebox and it is securely

placed. If the restrictor is loose or will not stay in position

manipulate the five tabs to suit.

Once the restrictor is in place, replace the baffle taking care not

to damage or scrape paint, and replace the two screws.

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