Reznor LCSC-3E 30 Guide

LCSC-3E--EN 1/40
1801LCSC-3EE--EN
Gas-Fired, Balanced-Flue or Power-Vented Unit Heater
LCSC-3E
20, 30, 45, 60, 75, 100
Installation, commissioning, servicing & user instructions
These appliances meet the following EC Directives
DIR 2009/142/EC : GAD
DIR 2014/30/EC : EMC
DIR 2014/35/EC : LVD
DIR 2006/42/EC : MD
Applies to
Austria, Belarus, Bulgaria, China, Czech Republic, Croatia, Cyprus, Denmark, England, Estonia, Finland,
Germany, Greece, Hungary, Iceland, Latvia, Lithuania, Montenegro, New Zealand, Norway, Poland, Romania,
Russian Federation, Serbia, Slovakia, Slovenia, South Africa, Spain, Sweden, Turkey, Ukraine
WARNING
Improper installation, adjustment, alteration, service, or maintenance can cause property
damage, injury, or death. All work must be carried out by appropriately qualified persons. The
manufacturer does not take any responsibility in the event of non-observance of the regulations
concerning the connection of the apparatus causing a dangerous operation of the apparatus, possibly
resulting in damage to the apparatus and/or environment in which the unit is installed.
Please read this document carefully before commencing installation commissioning and/or servicing.
Leave it with the user or attached to the appliance or gas service meter after installation.

LCSC-3E--EN 2/40
TABLE OF CONTENTS
1.0 INTRODUCTION
1.1 Basic Information
1.2 Warranty
2.0 SPECIFICATIONS
2.1 Technical data
2.2 Burner pressure
2.3 Blower curves
2.4 Blower options
2.5 Dimensions
3.0 GENERAL REQUIREMENTS
3.1 Related Documents
3.2 Heater Location
3.3 Combustion Air Inlet Pipe and Flue Pipe
3.4 Air Supply
3.5 Air Distribution System
3.6 Electrical Supply
3.7 Gas Supply
4.0 INSTALLATION
4.1 Uncrating and Preparation
4.2 Suspending the Heater
4.3 Fitting the Combustion Air Inlet/Flue Pipe
System
4.4 Gas Connection
4.5 Electrical Connections
4.6 Room Thermostat Siting
5.0 AIR DISTRIBUTION
6.0 COMMISSIONING AND TESTING
6.1 Electrical Check
6.2 Gas Connection
6.3 Suspension and Support
6.4 Lighting the Heater
6.5 Heater pipe work
6.6 Adjustments
6.6.1 Burner Gas Adjustment
6.7 Air Distribution System
6.8 Heater Controls
6.9 Handing Over
7.0 SERVICING INSTRUCTIONS
7.1 Servicing Procedure
8.0 REMOVAL AND REPLACEMENT OF PARTS
8.1 Main Burner Removal
8.2 Main Burner Injectors
8.3 Ignition System
8.4 Operating Gas Valve
8.5 Limit Controls
8.6 Combustion Air Pressure Switch
8.7 Combustion Air Fan
9.0 FAULT FINDING
10.0 PARTS LIST
11.0 GAS CONVERSION
12.0 USERS INSTRUCTIONS
13.0 HEALTH & SAFETY STATEMENT
HAZARD INTENSITY LEVELS
DANGER Failure to comply will
result in severe
personal injury or
death and/or property
damage.
WARNING Failure to comply could
result in severe
personal injury or
death and/or property
damage
CAUTION Failure to comply
could result in minor
personal injury and/or
property damage.
WARNING: The electrical isolator
should only be used in an emergency
and should not be used for closing
down the main burner, as it switches
off the fan prematurely and may
damage the heat exchanger,
invalidating the warranty.
ATTENTION: This appliance is not intended
for use by persons (including children) with
reduced sensory or mental capacities, or lack
of experience and knowledge, unless they have
been given supervision or instruction
concerning use of the appliance by a person
responsible for their safety. Children should be
supervised to ensure that they do not play with
the appliance.
INTRODUCTION
1.1 Basic Information
The instructions in this manual apply to Model
LCSC-3E gas-fired/fan-assisted warm air
heaters. These models have an axial fan for air
delivery. These heaters are designed for
overhead suspension and are suitable for indoor
installation only installed at an operation
ambient temperature between -15°C and 45°C.
When installed as a type C12/C32 and where
the height above floor level is greater than 1.8
meters measured to the underside of the
appliance they may be used as a garage air
heater. This appliance must be installed in
accordance with the rules in force. Before
installation, check that the local distribution
conditions, nature of gas and pressure and
adjustment of the appliance are compatible. A
permanent electricity supply of 230 volts, 50 Hz,
dange
r
1

LCSC-3E--EN 3/40
single phase is required.
Heaters are approved for:
Type C12 horizontal vent for balanced-flue
heaters;
Type C32 vertical vent for balanced-flue
heaters;
Type B 22 vertical vent;
When the external control calls for heat, an
electronic control begins the ignition sequence
to provide for a safe start..
About 30 seconds after the call for heat, the fan
will begin circulating warm air. The electronic
control will supervise the flame during the entire
heating cycle to ensure safe operation.
When the required room temperature is
reached, the main burner will shut down leaving
the fan running to cool down the heat
exchanger. After approximately 45 seconds, the
fan delay relay will turn off the fan.
1.2 Warranty: Warranty is void if:
TECHNICAL DATA
2.1 Specifications
Table 1a : Technical data
20 30 45 60 75 100
Comb. Air & Flue Type B (1)
Comb. Air & Flue Type C (1)
Connection colars mm 100 100 130 130 130 130
Heat inputs Hs kW 26,42 31,63 54,38 73,25 87,85 114,87
Heat inputs Hi kW 23,80 28,50 49,00 66,00 79,15 103,50
Heat output kW 21,82 25,99 44,64 60,92 73,13 94,50
Thermal efficiency % 91,70 91,20 91,10 92,30 92,39 91,30
Gas consumption G20 m3/h 2,52 3,02 5,19 6,98 8,38 11,19
Gas consumption G31 kg/h 1,86 2,22 3,82 5,15 6,17 8,24
Gas pipe connection (2) inch
ESP MIN Press Pa 50 50 50 100 150 100
ESP MAX Press Pa 200 300 200 200 350 300
Air flow measured m3/h 2248 2741 4023 5573 7079 8068
Temperature rise (3) K 28 28 32 32 30 34
Electrical service (protection IP20) 400V 3P
50Hz
Blower electrical rating W 660 1250 1410 1700 3070 3200
Total electrical rating W 770 1370 1530 1810 3180 3320
Blower Weight kg 14,5 20,5 27 26 41 45
Unit Weight kg 54 55,8 87 99 109 155
Total Weight kg 68,5 76,3 114 125 150 200
230/240V 1N 50Hz 230/240V 1N 50Hz
LCSC-3E
B22P
C12, C32, C42, C82
½" ¾"
a) LCSC-3E heaters are installed in atmospheres containing flammable vapors or atmospheres
containing chlorinated or halogenated hydrocarbons or atmospheres containing any silicone,
aluminum oxide, etc., that adheres to spark ignition flame sensing probes.
b) The installation is not in accordance with these instructions.
2
(1) Gas appliance Classifications for approved venting methods based on CEN report CR 1749:2001.
(2) There is a difference between the gas connection diameter and the diameter of the supply line. Always use the most
adequate diameter of the supply line to minimize the pressure drop through the gas pipes – if necessary, reduce the
diameter of the supply line at the inlet of the unit.
(3) Figure for isothermal conditions.

LCSC-3E--EN 4/40
Table 1b : Gas categories
Country Gas category Country Gas category
Austria II2H3P Montenegro II2H3+
Belarus II2H3+ New Zealand II2H3+
Bulgaria I2H or I3P Norway II2H3 B/P
China II2H3+ Poland II2E3P
Czech republic II2H3+ Portugal II2H3+
Croatia II2H3P Romania II2H3 B/P
Cyprus II2H3+ Russian Federation I2H or I3P
Denmark II2H3 B/P Serbia II2H3+
England II2H3+ Slovakia II2H3+
Estonia II2H3+ Slovenia II2H3+
Finland II2H3 B/P South Africa II2H3+
Germany I2ELL Spain II2H3+
Greece II2H3+ Sweden II2H3 B/P
Hungary II2HS3P Turkey II2H3+
Iceland II2H3+ Ukraine I2H or I3P
Latvia II2H3+
Lithuania II2H3+
2.2 Burner pressure & injector size
Table 2: Burner pressures & injector sizes
Model2030 456075100
Injector quantity 5 6 10 8 10 12
mm 2,10 2,10 2,20 2,70 2,70 2,90
marking 210 210 220 270 270 290
Burner pressure (1) mbar 8,00 7,25 6,90 8,50 8,30 7,50
Inlet pressure mbar
Injector quantity
-
561081012
mm
-
1,15 1,15 1,15 1,50 1,45 1,50
marking
-
115 115 115 150 145 150
Burner pressure (1) mbar
-
34,20 34,40 35,90 35,20 35,40 34,40
Inlet pressure mbar
Model2030 456075100
Injector quantity
-
5610-10-
-
mm
-
2,40 2,40 2,40 - 3,00 -
-
marking
-
240 240 240 - 300 -
-
Burner pressure (1) mbar
-
8,30 8,20 8,25 - 9,25 -
-
Inlet pressure mbar
Injector quantity
-
5610-10-
-
mm
-
2,60 2,60 2,60 -3,90 -
-
marking
-
260 260 260 -390 -
-
Burner pressure (1) mbar
-
8,25 8,45 8,40 -5,25 -
-
Inlet pressure mbar
G2,350
Injector size
13
Belarus, China, Croatia, Czech Republic, Cyprus, England, Estonia, Greece, Iceland, Latvia, Lithuania,
Montenegro, New Zealand, Portugal, Serbia, Slovenia, Slovakia, South Africa, Spain , Turkey, Poland
Nat. Gas
G20
Injector size
20
Prop. Gas
G31
Injector size
37
LCSC-3E
LCSC-3E
Special Poland
G27
Injector size
20
(1) with open service door

LCSC-3E--EN 5/40
Model2030 456075100
Injector quantity
*
561081012
mm 2,10 2,10 2,20 2,70 2,70 2,90
marking 210 210 220 270 270 290
Burner pressure (1) mbar 8,00 7,25 6,90 8,50 8,30 7,50
Inlet pressure mbar
Injector quantity
-
561081012
mm
-
1,15 1,15 1,15 1,50 1,45 1,50
marking
-
115 115 115 150 145 150
Burner pressure (1) mbar
-
34,20 34,40 35,90 35,20 35,40 34,40
Inlet pressure mbar
(* ): Inlet pressure for Hungary = 25mbar
(**): no nat gas for Germany
Model2030 456075100
Injector quantity 5 6 10 8 10 12
mm 2,10 2,10 2,20 2,70 2,70 2,90
marking 210 210 220 270 270 290
Burner pressure (1) mbar 8,00 7,25 6,90 8,50 8,30 7,50
Inlet pressure mbar
Injector quantity
-
561081012
mm
-
1,15 1,15 1,15 1,50 1,45 1,50
marking
-
115 115 115 150 145 150
Burner pressure (1) mbar
-
34,20 34,40 35,90 35,20 35,40 34,40
Inlet pressure mbar
Model2030 456075100
Injector quantity 5 6 10 8 10 12
mm 2,10 2,10 2,20 2,70 2,70 2,90
marking 210 210 220 270 270 290
Burner pressure (1) mbar 8,00 7,25 6,90 8,50 8,30 7,50
Inlet pressure mbar
Injector quantity
-
561081012
mm
-
1,15 1,15 1,15 1,50 1,45 1,50
marking
-
115 115 115 150 145 150
Burner pressure (1) mbar
-
34,20 34,40 35,90 35,20 35,40 34,40
Inlet pressure mbar
(1) : with open service door
LCSC-3E
LCSC-3E
Bulgaria, Denmark, Finland, Norway, Sweden
Austria, Germany, Hungary, Russian Federation, Ukraine
Nat. Gas
G20
Injector size
20(*)
Prop. Gas
G31
Injector size
50
Nat. Gas
G20
Injector size
20
Prop. Gas
G31
Injector size
30
Prop. Gas
G31
Injector size
30
Romania
LCSC-3E
Nat. Gas
G20
Injector size
20

LCSC-3E--EN 6/40
2.3 Blower curves LCSC-3E

LCSC-3E--EN 7/40

LCSC-3E--EN 8/40

LCSC-3E--EN 9/40
2.4 Blower options LCSC-3E
2.4.1 Mixing cabinet LCSC-3E
Bottomexit Rearexit
closed open
open closed
half half
Damperposition

LCSC-3E--EN 10/40

LCSC-3E--EN 11/40

LCSC-3E--EN 12/40
2.4.2 Mixing cabinet and filters LCSC-3E

LCSC-3E--EN 13/40

LCSC-3E--EN 14/40

LCSC-3E--EN 15/40
2.4.3 Free blowing
FreeblowingDimensions[mm]
LCSC‐3ERestriction
partno
ABC
20 ‐ ‐‐‐
3010024365870240
451002437154154320
601002438130154320
751002439130154396
1001002440166178396

LCSC-3E--EN 16/40
2.5 Dimensions standard unit

LCSC-3E--EN 17/40
Dimensions unit with mixing cabinet (option 526)

LCSC-3E--EN 18/40
GENERAL REQUIREMENTS
3.1 Related documents
It is important that all gas appliances are
installed in accordance with the rules in force
and by appropriately qualified persons.
Failure to install appliances correctly could
lead to prosecution. It is in your own interest
and that of safety to ensure compliance with
the law.
3.2 Heater location
The location chosen for the air heater must
permit the provision of a satisfactory flue
system venting to outdoor atmosphere and
adequately ventilated to provide for
combustion air. The location must also
provide sufficient space to allow the heater to
be serviced.
Table 3
Minimum installation clearances (mm)
LCSC-3E 100
Top 150
Flue connector 150
Access panel 500
Non access si
d
150
Bottom 150
Rear* 250
*Measure rear clearance from the back of the blower
Table 4
Recommended mounting heights to underside
(m) (*)
LCSC-3E 20 3045 others
Mounting height 3 4 5
*Height from floor to bottom surface of heater. These
are recommendations only. Positioning of heaters
depends on application.
Air heaters should, where ever possible
always be installed to blow toward or along
external wall surfaces. Where two or more air
heaters are installed in the same room, a
general scheme to ensure continuous air
circulation should be maintained for best
results. Suspended heaters are most
effective when located as close to the
occupancy zone as possible, this fact should
be born in mind when determining the
mounting heights to be used. Care should be
exercised to avoid directing warm air directly
onto the occupants. Partitions, columns,
counters, storage racking, etc. should be
taken into account when choosing the
location so that an unobstructed path for the
air circulation can be maintained.
Where air heaters are located in the center of
the space to be heated, the air should be
discharged toward outside walls. In large
areas, they should be located to discharge
air along outside walls with additional
heaters provided to blow air into the center of
the area.
In places where infiltration of cold is
excessive, such as entrance doors it is
desirable to locate a heater so that warm air
is discharged directly toward the source of
cold air from a distance of 4,5 - 6,0m
Air heaters should not be installed in
corrosive atmospheres, i.e. near
plating or degreasing plants or in
areas where there is a fire risk.
Do not locate the air heater where it
may be exposed to water spray, rain,
etc.
3.3 Combustion air supply & flue
system
The air heater may be installed as a
balanced flue (Type C) heater requiring both
a combustion air inlet duct and a flue pipe or
as a power vented (Type B) heater, which
requires only a flue pipe exhausting to
outdoors. All products of combustion must be
flued to outdoor atmosphere.
Figure 2a: Combustion air and flue pipe sockets
Legend :
1 Flue outlet socket
2 Combustion air inlet opening
3 Gas connection inlet with sealing ring
4 Electrical connections
3

LCSC-3E--EN 19/40
Each heater installed as a type B appliance
must be fitted with an individual flue pipe and
the combustion air inlet opening must be
provided with a protection grill (ask your
distributor for the appropriate protection grill
(IP20) (dia130 = PN 02 25094 ). Each
heater installed as a type C appliance must
be fitted with an individual combustion
air/flue pipe system. Only systems specified
by the air heater manufacturer may be used.
Common flue and combustion air systems
must not be used
IMPORTANT: The flue must be installed in
accordance with national and local regulations.
Failure to provide proper flueing could result in
death, serious injury and/or property damage.
The air heater must be installed with a flue to
the outside of the building. Safe operation of
any power vented gas apparatus requires a
properly operating flue system, correct
provision for combustion air, and regular
maintenance and inspection.
3.3.1 Flues for power vented installations
(Type B appliances)
If the air heater is to be installed as a type B
appliance, air for combustion will be taken
from within the space where the heater is
installed. Ensure that an adequate air supply
for combustion and ventilation is provided
within the building in accordance with the
regulations & rules in force.
Table 5 shows flue pipe sizes and maximum
pipe lengths. The minimum flue length is 0.5
meters.
Table 5 Flue pipe diameters & maximum
lengths
LCSC-3E other sizes
Heater socket & mm
pipe dia
Maximum straight m
length
Equivalent length m
of 45° elbow
Equivalent length m
of 90° elbow
9
0.75
1.5
20 & 30
100
130
Single wall flue pipes are required. All joints
must be sealed to prevent products of
combustion from leaking into the building. An
approved flue terminal is required.
If the flue passes through a combustible
element of the building it must be enclosed
by a sleeve of non-combustible material and
separated from the sleeve by at least a 25
mm air break.
The temperature of any combustible material
near to the flue must not exceed 65°C when
the heater is in operation. The flue must be
at least 50 mm away from any combustible
material.
Single wall flue pipe exposed to cold air or
run through unheated areas must be
insulated. Where condensation is
unavoidable, provision must be made for the
condensation to flow freely to a point to
which it can be released, i.e. a drain or gully.
The condensation drain from the flue must be
constructed from non-corrodible material not
less than 20 mm diameter. Copper or copper
based alloys must not be used for
condensation drains.
3.3.2 Combustion air inlet pipe & flue pipe for
balanced flue installation (Type C appliances)
Balanced flue air heaters are designed to be
fitted with a combustion air inlet pipe that
obtains outdoor air and a flue pipe that
exhausts flue products to outdoors.
Air heaters if fitted with a power venter
permitting either a vertical or horizontal
combustion air inlet/flue pipe system. The
heaters must be installed with a
concentric vertical or horizontal
flue/combustion air inlet. The heaters are
only approved for use when installed with
the appropriate approved concentric vent
terminal. See table 6.
Both the flue and combustion air pipes must be
sealed. Use gasket sealed seamless aluminum
pipe or equivalent.
The flue pipe must include a re-sealable test
port to allow good average sampling of the flue
gas mixture for testing, the port must be at
least 450 mm away from the air heater flue
connection socket.
Follow any flue pipe manufacturers’ installation
instructions for making joints, including
connections to the air heater, for passing
through a building element and for support
requirements. If more than one air heater is
being installed in the same place each heater
must have a separate flue system.
Where condensation is unavoidable,
provision must be made for the condensation
to flow freely to a point to which it can be
released, i.e. a drain or gully. The
condensation drain from the flue must be
constructed from non-corrodible material not
less than 20 mm diameter. Copper or copper
based alloys must not be used for
condensation drains.

LCSC-3E--EN 20/40
1
2
Figure 2b :
Combustion air and flue pipe sockets, Type C
1 Flue pipe outlet collar
2 Combustion air pipe inlet collar
Table 6
Combustion air inlet & flue pipe requirements
20‐30 Othersizes
mm Fluepipe/Inletpipe 100 130
mFluepipe/Inletpipe 9 9
mFluepipe/Inletpipe 0,75 0,75
mFluepipe/Inletpipe 1,5 1,5
mFluepipe/Inletpipe 1,5 1,5EquivalentLengthof
90°elbow
LCSC‐3E
Heatersocket&pipedia
Maxstraightlength
Equivalentlengthof45°
elbow
Equivalentlengthof90°
elbow