Impresind Ray.Red User guide

Ray.Red
GAS POWER
STP 035GB – 04-18
1
Ray.Red
Istallation and operating instruction
GAS FIRED RADIANT TUBES
GAS POWER
STP035GB-04-18 (valid from 04-2018) TRASLATION OF THE ORIGINAL INSTRUCTION

Ray.Red
GAS POWER
STP 035GB – 04-18
2
INDEX
Part 0: GENERAL INFORMATIONS
0 Introduction ………………………………………………………………………. 4
Part 1: INSTRUCTIONS FOR THE INSTALLER
1 General ………………………………………………………………………. 5
2 Areas of use ………………………………………………………………….. 5
3 Technical data ……………………………………………………………….. 6
4 Radiant unit construction and assembly …………………………………… 7
5 Planning requirements ………………………………………………………. 11
6 Standards, Rules and Regulations ………………………………………… 12
7 Installation ……………………………………………………………………. 13
8 Start up and settings …………………………………………………………. 19
9 Conversion …………………………………………………………………... 21
10 Service ………………………………………………………………………. 21
Part 2: OPERATING INSTRUCTIONS
11 Description of Functioning and Use ………………………………………… 24
12 Suggestions for Energy-Saving Operations …………………………………. 24

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13 Maintenance of the Unit …………………………………………………….. 26
14 If the Unit does not operate properly ………………………………………… 28
Part 3: CAUTIONS AND RESTRICTION
15 Improper Use ………………………………………… 29
16 Dismantling …………………………………. 30

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GAS POWER
STP 035GB – 04-18
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Part 0: GENERAL INFORMATIONS
0. Introduction
Dear Client,
We thank you to have chosen an Impresind Srl product and inform you that:
•The aim of this guide is only informative and can be subject to variations without
warning;
•This guide cannot be nor partially nor entirely reproduced, diffused, copied or saved in
a storage system in any form or in any media, mechanic, magnetic, optic, chemical or
others, without written authorisation by Impresind Srl.
•This guide has to be conserved until the final dismantling of the product, in case of
property change the guide has to be delivered to the new owner.
•In case of damage and consequent block of the product, Impresind Srl doesn’t refund
eventual economical losses due to the forced block of the product and doesn’t extend
the warranty.
This use and maintenance guide has to be considered as part of the product; it has to be
kept for the entire life cycle of the product.
Impresind Srl declines any responsibility for damages that could, directly or
indirectly, derive by people or objects, due to improper use of the product
or different use from its application field, incorrect installation, not
appropriate supply used, modified or different installation environment
than the one communicated in the order stage, bad maintenance
deficiencies, not authorised interventions and modifications, use of non
original spare parts, removal of active and passive protections, non
observance of the user instructions carelessness, etc.

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GAS POWER
STP 035GB – 04-18
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Part 1: INSTRUCTIONS FOR THE INSTALLER
1. General
The infrared radiant heaters of this series are gas appliances which can operate on
natural or LPG
They conform with the European Norms ( EN 416-1:2009 ) and
The installation of the gas radiant heaters must conform with the current
national/international regulations for gas appliances and take into account the local
Building Regulations and the requirements of the local gas supply company.
Electrical installation, gas and electrical connection of the appliance must be
undertaken by qualified installers and executed in conformity with regulations in
force in the destination country of the goods.
Because there may be local differences in some of the requirements, the following
recommended installation instructions are not binding. Any necessary approval must
therefore be obtained before the installation is carried out.
2. Areas of use
The gas radiant heaters are fully automatic, direct fired appliances for ceiling or wall
mounting.
They are intended for the heating of halls and large rooms by infrared radiation: they
heat, in the same way as the sun's radiation, the body, the floor, the walls and all the
objects which their radiation reaches and which, for their part, absorb a part of the
energy radiated.
The surrounding space and the air are thus only heated minimally by convection by
the warm surfaces and objects.
Thermal inertia is thus practically eliminated.
The radiant heaters are particularly suited for installation in the following spaces:
- with installation heights between 4 and 9 m dependent on heat output (Guidance:
5.5-7 m generally recommended, dependent on model, 4m for very localised
heating, 9m for background heating)
- in which it is not wished to create any air movement
- in which various temperature ranges or heating time cycles are wanted.
Against this, installation is to be avoided in the following cases:
- installation heights under 3 and above 9-10 m
- where inflammable or explosive materials are being used or can arise
- where air flow rates above 2.5 m/s or high air or ground humidity exist
In some individual cases, the installation can still be possible if special approval is
obtained at the appropriate stage in planning.

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3. Technical data (04-2018)
T E C H N I C A L D A T A
M O D E L Ray 1E Ray2E/S Ray 2E Ray 3E Ray3/9E Ray 4E
Thermal input kW 12,00 19,50 21,00 32,00 32,00 40,00
Gas consumption - Nat. gas – G20 m
3
/h
st
1,25 2,03 2,19 3,33 3,33 4,16
Gas consumption – LPG - G31 kg/h
st
0,93 1,50 1,63 2,48 2,48 -
Ø Jet - Nat. gas - G20 mm 2,90 3,80 4,10 5,00 5,00 5,60
Ø Jet - LPG - G31 mm 1,75 2,20 2,40 2,80 2,80 -
Gas supply pressure – G20 (min÷max) mbar 17÷23 17÷23 17÷23 17÷23 17÷23 17÷23
Gas pressure to jet - G20 mbar 9,0 9,0 9,0 9,0 9,0 9,0
Gas supply pressure – G31 (min÷max) mbar 30÷37 30÷37 30÷37 30÷37 30÷37 -
Gas pressure to jet – G31 mbar 30 30 30 30 30 -
Ø Gas connection “ G. ½ “ male
Ø Flue gas connection mm 100 female
Ø Air intake connection mm 100 female
Electrical consumption A 0.50
Electrical supply V 230 ~ 50 Hz. 1 phase
D I M E N S I O N S
“U” Version Ray 1E Ray2E/S Ray 2E Ray 3E Ray 3/9E Ray 4E
Length mm 3600 5100 6650 6650 8650 10650
Width mm 500 500 670 670 670 670
Height mm 285 285 285 285 285 285
Weight Kg 50 75 120 120 150 200
“L” Version Ray 1E-L Ray2E/S-L Ray 2E-L Ray 3E-L
Length mm 6550 9550 9550 12550
Width mm 410 410 410 410
Height mm 285 285 285 285
Weight Kg 45 70 105 115

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4. Radiant Unit Construction and Assembly.
The gas radiant heaters are constructed from the following main parts:
gas burner, radiant tube, reflector and flue gas fan.
1. Gas Burner 5. Flue gas fan
2. Gas connection 1/2"BSP 6. Reflector
3. Electrical connection 7. Radiant tube support and
(mains and controls plug) mounting bracket
4. Combustion air intake 8. Radiant tube
As delivered, there are the radiant tubes, reflector sections and a carton containing
the following parts: gas burner, flue gas fan, U-bend,pipe connectors (3/9E, 4E and
L versions), support and intermediate brackets, stirrup clamps and reflector screws.
The radiator is assembled as follows - see the drawing which follows and assembly
diagrams.
4.1. Lay the radiant tubes, with both ends free on the appropriate supports,
preferably under the position where it is to be mounted. Note that one end, the
burner end, has an inner stainless steel tube
4.2. Push the U-bend, with the securing screws upwards, onto the tubes until these
are firmly against the shoulders. Tighten the securing screws firmly!
4.3. Place the support brackets on the tubes at both ends and in the middle, place
the stirrup clamps in place and firmly - maintain the distances indicated .
4.4. Lay the intermediate brackets, fasten with the stirrup clamps: first screw the
lower nuts on as far as the end of the thread, insert the stirrup clamps, tighten the
upper nuts.
Important ! After the stirrup clamps are laid in place, the intermediate brackets must
be able to be moved freely on the pipes!

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Remove the protective plastic film from the reflector sections and push them into the
support brackets. Fasten the reflectors to the intermediate brackets with the
provided screws.
If preferred, the reflectors may be fitted after the unit is in place.
4.5. Insert the burner, with the warning lamps downwards, on the pipe until it comes
up against the shoulder. Be sure that the burner is mounted on the pipe with inner
stainless steel tube (look for the inner pipe!). Fasten the clamps.
.

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STP 035GB – 04-18
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DIMENSION

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Important:
Check the alignment of the burner: The burner axis and the pipe axis must
coincide, misalignment of the burner shortens the life of the pipe! If the mounting is
to be at an angle, the burner must be fitted to the lower pipe and vertically
orientated. Check also that there is a minimum separation between the burner box
and the reflector of 5-10cm.
4.6. Insert the flue gas fan into the free end of pipe until it comes up against the
shoulder, arrange the connection socket horizontally or vertically according to the
flue arrangement, fasten the clamp, plug the motor connection into the socket on the
burner housing.
1.Radiant pipe
2. U-bend
3. Support bracket
4. Intermediate bracket
5. Reflector
6. Gas burner
7. Flue gas fan
8. Stirrup clamps
.

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5. Planning Requirements
5.1 Appliance Positioning
The number and models of radiant heaters will be determined by the heating
requirement (full or partial heating) and the height of installation.
An even distribution of radiation will be achieved when the radiant angles of
neighbouring appliances intersect each other approximately 1.5 - 2.0 m above the
floor. For full heating, the outside walls must also be within the zone of radiation.
The radiation angle from the reflector sides to the floor is approximately 60
o
.
Dependent on the height of installation and the way the units are suspended, the
following indicative values can be arrived at for the radiant area at floor level:
Radiant heater model Ray 1 E 2 E 3 E 4 E
Height of installation (m)
- horizontal suspension min. 4,0 4,0 4,0 5,0
max. 5,0 7,0 9,0 9,0
-angled suspension : min. 3,0 3,3 3,7 4,5
to 35° max. 4,0 5,0 5,0 5,5
Radiant area* (m x m) min. 5 x 5 6 x 7 8 x 10 14x12
with horizontal suspension max. 8 x 8 11 x 12 15 x 16 16x16
* Indicative values to enable the rough selection of models
5.2 Minimum Clearances
The minimum clearance above and sideways from the reflector is 500 mm when
there are inflammable fittings or material nearby.
This clearance can be reduced by the use of insulation.
Under the radiant tube (within the zone of radiation) there should be on objects or
fittings a distance of 1500 mm.
Further, the general surface temperature of the supporting parts of the building
should not exceed 50
o
C.
.

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5.3 Controls
The radiant heater can be controlled by an operating switch or by a room thermostat
and, if appropriate, a time switch.
Where the whole space is to be heated use an electronic thermostat with "black
bulb" sensor; it takes account of both air and average radiant temperature.
The setting should be the same as the desired comfort temperature.
5.4 Flue Gas Extraction
Since the radiant heaters are fitted with flue gas fans, the flue gas must be
discharge through the roof or an outside wall.
The maximum length of the 100 mm dia. flue pipe may not exceed 4 m with two
bends.
In case of superior length, the diameter of the flue pipe should be greater (Ø 130).
5.5 Combustion Air
The combustion air will generally be drawn from the room.
If there is insufficient ventilation or if there are corrosive or dangerous vapours or
gases or dust or may possibly arise, the combustion air must be brought from
outside through a fresh air duct.
With an individual gas flue through the outside wall, the total combined length of the
flue gas and fresh air ducting must not be greater than 4 m with two bends.
Planning and realisation must be according to the relevant regulations.
6. Standards, Rules and Regulations
The following standards rules and regulations must be taken into account before and
during the installation:
1. All relevant national and international standards and regulations
2. Building Regulations
3. Any planning requirements
4. Any requirements imposed by the local fire service
5. Any requirements imposed by the Health and Safety Executive or their local
equivalent
6. Any requirements imposed by an insurance company
7. Any requirements imposed by the local gas distribution company

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7. Installation
7.1 Paking, logistic and transport
When the package is delivered to the client, the latter is obliged to control the integrity of the
product.
Control the package an its contents, in case of
damage due to the transport, the client has to
tick damage claim box on the transport
document, this has to be countersigned by the
carrier and a copy has to be sent to Impresind
Srl.
Pay high attention handling the T B-ONE units during the phases of
downloading from the carrier, logistics and positioning, to avoid damages
to carpentry and to the most delicate components (tubes, fans, etc.).
IMPRESIND SRL DECLINES ANY RESPONSABILITY FOR DAMAGES DUE TO
TRANSPORT, UPLOAD, DOWNLOAD OF THE TUB-ONE UNITS
Ensure that the maximum lifting power of the lifter is adequate to the
products weight.
The product has to be lifted only by qualified personnel.
Pay maximum care in handling the radiant strips while downloading form
the carrier, positioning and the assembling the sections, to avoid damages.
If lifting people the machinery has to be specifically certified and used by
qualified personnel.
IT IS ABSOLUTELY FORBIDDEN TO STAY UNDER THE HANGING LOADS AND
INSIDE THE ACTION AREA OF THE LIFTER

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7.2 Suspending the Appliance
Suspend the radiant units in the foreseen place using suitable dimensioned chains,
steel rods or steel ropes or, where appropriate, wall brackets, if possible with a
downwards slope towards the U-bend (or the flue gas fan for the L versions) of up to
25 mm. For the adjustment, use locking devices. Observe the minimum clearances
in Section 5.2.

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Important !
Depth in the direction of the terminal curve: 2.0 ÷ 4 cm. this is necessary in order to
prevent condensation dripping during the initial phase of operation.
View picture below
RADIANT SECTIONS POSITIONED NEAR A CRANE

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7.3 Gas Connection
Check on the appliance plate for the type of gas for which the heater is set. If
necessary, convert to the supply available - see Section 9.
The gas connection must only be made by a qualified installer.
Between the gas connection on the radiant heater (1/2" male BSP) and the gas
supply, must be inserted a flexible metal hose approved for such use and a shut-off
valve (both to be supplied by the installer).
For LPG it is essential that a 37 mbar pressure reducer is installed on the gas
supply.
Important !
Connection pressures in excess of 50 mbar can damage the gas valve.
No excessive force is to be used on the connection pipe.
The connection must be tested for gas tightness and the gas pipe must be emptied
from air.
For the gas pressure supply view the paragraph 3 in this istruction
If the connection is not within these limits, the connection may not be made and the
appliance may not be used.
If the cause of the divergence from these values cannot be corrected by the installer,
then the gas utility or LPG supplier should be notified.

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7.4 Electrical Connection
The electrical connection must be carried out by a qualified electrician in accordance
with applicable regulations - see the circuit diagrams which follow.
The mains connection is by a plug on the radiant unit. It must be connected to a
main switch.
Important !
Ensure that the wiring is phased correctly. A good earth connection is essential for
trouble free operation.
F - 2 amp fuse
CF - Burner controller M - Flue gas fan motor
J5 - Ionisation electrode LV - Stand-by light (green)
PA - Low air pressure cut-out LG - Operating light (yellow)
VG - Gas Valve LR - Failure light (red)
TA - Room thermostat JT2 - Ignition electrode

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DIAGRAM FOR THE CONNECTION TO THE BURNER
Model with terminal box with 7 poles
IMPORTANT !
CONNECT THE UNIT AS INDICATED IN THE DIAGRAM
RESPECT THE POLARITY BETWEEN PHASE AND NEUTRAL
FOR SIGNALS:DO NOT USE FILAMENT LAMPS, USE ONLY NEON LAMPS
THE RESET BUTTON IS NECESSARY
“L4” AND “L5” LAMPS ARE NOT NECESSARY BECAUSE THEY ARE ALREADY
PRESENT ON THE BURNER BOX
.

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7.5 Flue Gas Removal and Combustion Air Supply
Install the flue gas removal and, if appropriate, combustion air supply according to
the plans - see also Sections 5.4 and 5.5.
The flue gas pipe must not put a stress on the connection.
Fresh air ducting is to be flange connected to the side of the burner house without
stressing the house.
Fit the flue gas and fresh air pipes at the outside wall with suitable wind and rain
terminals.
8. Start up and settings
The first start up of the unit may only be undertaken by an authorised specialist or by
the manufacturer's customer service.
Important!
Check all connections and screwed joints of the radiant unit for tightness with a
suitable corrosion free spray
8.1 Testing the pressure
Check the type of gas on the appliance plate.
Connect a U-tube manometer through the opening on the rear of the burner (remove
the cover) to the inlet measuring point P1. Start the appliance and note the limit
value.
Connect a U-tube manometer to the outlet measuring point P2, start the appliance.
The jet pressure must agree with the setting shown on the appliance plate.
(see section 3 – technical data).
Eventually set the jet pressure, using the S regulator screw.

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Front sight
Rear sight
8.2 Training to the operator
After start up and settings of the radiant unit, instruct the operator in detail on the
use and maintenance operations. Recommend a service contract.
.
s
P2
P1
Sit Gas Valve
s