Reznor FSV User guide

0210-FS0GBEN
Floorstanding
Oil Fired Heaters
FSV - FSH
(Mk 2)
Installation
Servicing
&
Operating Instructions
Please read this document carefully before commencing the installation & leave it
with the user or attached to the appliance after installation.
Reznor U.K. Limited – Park Farm Road – Folkestone – Kent CT19 5DT – Tel [phone] – fax [phone]

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INDEX
1.0 Introduction
1.1 General Information
1.2 Quality Products
1.3 CE Approved European Directives
1.4 Product Information
1.5 Warning
2.0 Technical Specifications
2.1 Data Sheets
2.2 Dimensions
3.0 Mechanical/Electrical Services
3.1 Oil supply
3.2 Oil pipework
3.3 Electrical Connection
3.4 Ventilation Requirement
3.5 Electrical timer
4.0 Installation
4.1 Location
4.2 Heater Clearances
4.3 Flue
4.4 Nozzled Heaters
4.5 Ducted Heaters
4.6 Filters
4.7 Controls
5.0 Commissioning
5.1 Pre-Commissioning Checks
5.2 Commissioning Procedure
5.3 Commissioning Outlets
5.4 User Instructions
6.0 Instructions for Servicing
6.1 Frequency
6.2 Procedures
6.3 Re-Commissioning
7.0 Fault Finding
8.0 Spare Parts
8.1 3D Drawing
8.2 Parts List
9.0 Reference Standards

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1.0 Introduction
1.1 General
1.1.1 Before installation check that the appliance as
described on the packaging label is in
accordance with the correct type and model
specified on the data plate and complies with
your customer order.
1.1.2 The heater is delivered wrapped in heavy duty
polythene and should be checked to ensure
that it has been delivered undamaged.
1.1.3 Please read this document before commencing
installation. The onus rests with the installer to
ensure that all relevant manuals are read and
understood, especially with regard to any
safety instructions stipulated by the
manufacturer.
1.1.4 These instructions are only valid for the country
of use indicated on the appliance, i.e. GB - IE.
If these symbols are not shown it is necessary
to obtain appropriate technical instructions
which will provide information concerning the
necessary modification of the appliance for use
in the country concerned. Such instructions
may be obtained from your supplier upon
request.
1.1.5 Check that the local distribution conditions of
electricity supply, type of oil and pressure and
adjustment of the appliance are compatible.
1.1.6 When installed in Great Britain the total
installation must comply with the requirements
and recommendations of the relevant British
Standards & local laws. The installation must
also be in accordance with the relevant
electrical regulations and I.E.E. regulations.
1.1.7 Warning! Unauthorised modification of this
appliance or departure from use in the manner
for which it was intended by the manufacturer,
or installation in a manner contrary to these
instructions may constitute a hazard and
jeopardise all warranties. Deviations should
only be carried out after formal consent has
been obtained from the manufacturer.
1.1.8 Caution! Ensure that the environment in which
the air heater is to be installed will not create a
hazard, i.e. where excessive (volatile) dust,
flammable or corrosive substances and/or
vapours and combustible materials may be
present. Suitable protection should be given to
prevent damage to the appliance, for example
from fork lift trucks.
1.1.9 These appliances have been tested and set
according to the data plate before leaving the
factory.
1.2 Quality Products
1.2.1 The Reznor range of oil fired floorstanding
heaters is manufactured in the EC and
supplied in accordance with BS EN 9002: 1994
Quality Assurance System.
1.2.2 Certificates of conformity are available from the
Quality Control department at Reznor Limited.
1.3 CE-Approval-European
Directives
1.3.1 Reznor floorstanding heaters have been fully
assessed and tested and meet the following
EC Directives:
- Machinery Directive (89/392/EEC)
- Low Voltage Directive (73/23/EEC &
93/68/EEC)
- Electromagnetic Compatibility Directive
(89/336/EEC & 91/36 EEC)
- Product Liability Directive (65/379/EEC)
1.3.2 In addition Reznor oil fired floorstanding
heaters are conform to the following
harmonised standards:
BS EN 292 - Part 1 :Safety of Machinery -
Basic Concepts, General Principles for
terminology, methodology
BS EN 292 - Part 2 :Safety of Machinery -
Basic Concepts, General Principles for Design
Technical Principles and Specifications.
BS EN 60204 - Part 1 :Safety of Machinery -
Electrical Equipment for Machine Specification
for General Requirements.
BS EN 60335 - Part 1 :Safety of Household
and Similar Electrical Appliances General
Requirements.
BS EN 55014 :Limits and methods of
measurement of radio disturbance
characteristics of electrical motor-operated and
thermal appliances for household and similar
purposes, electric tools and similar electric
apparatus.
prEN 50165 :Electrical equipment of non-
electric heating appliances for household and
similar purposes, safety requirements.
1.4. Product Information
1.4.1 Reznor floorstanding heaters are available with
burner outputs from 30kW to 293kW and can
be floor mounted (FSV units) or suspended
(FSH units).
Floorstanding heaters can be used in free
blowing or ducted applications. Each heater
must have its own individual open flue.
1.4.2 All floorstanding heaters are fitted with a pre-
tested and set forced draught burner. A
sequential control box is fitted to each burner
to provide safety. Note: No asbestos or
soldered joints are present in the construction
of the heater.
1.4.3 All the materials selected can withstand the
range of chemical, mechanical and thermal
demands expected during the foreseen and
normal use of the product, as stipulated by
manufacturers' instructions and
recommendations.
1.4.4 Before final location of the product the following
criteria should always be considered in placing
the heater:-
• Flue outlet access
• Placing for efficient distribution of warm air
• Oil supply
• Electrical services
• Fresh air supply (when applicable)
• Service access and maintenance
requirements
1.5 Warning
Heaters should not be installed in a corrosive
or solvent atmosphere
(i.e. near plating or degreasing plants), in areas
where there is a fire risk, or any other
environment which is detrimental to the heater
or its operation. Consult BS 6230 for further
information on hazardous areas.

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2.0 Technical Specifications
2.1 Class D Oil (table 1a)
29 44 60 88 117 150 175 205 235 293
kW 38.0 57.1 76.1 114.2 152.2 190.2 228.3 257.5 304.4 336.5
Btu/h 129777 195007 259895 390013 519790 649567 779685 879409 1039580 1149208
kW 35.5 53.4 71.1 106.7 142.2 177.8 213.4 241.6 284.5 315.6
Btu/h 121239 182371 242819 364400 485638 607219 728799 825107 971618 1077830
kW 31.0 44.1 60.5 87.9 119.3 148.0 178.0 202.9 234.4 268.9
Btu/h 105871 150609 206618 300194 407431 505446 607902 692940 800518 918342
Burner Type Riello 40 G5 40 G5 40 G10 40 G10 40 G20 40 G20S
40 G20S ext.
head ref
3000771
RL28.1 RL28.1 RL28.1
Oil Consumption kg/hr 2.89 4.34 5.78 8.67 11.56 14.45 17.34 20.36 23.12 26.60
bar 12.0 12.0 13.0 12.0 11.0 14.0 12.0 12.5 12.0 10.0
psi 174 174 189 174 160 203 174 181 174 145
Smoke No. 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1
Size 0.65 1.00 1.35 2.00 2.75 2.75 4.00 3.00 AND
1.50
3.50 AND
2.00
4.50 AND
2.00
Angle 60°60°60°60°45°45°60°45°x 2 45°x 2 45°x 2
Shape SSSSSS S
Head Setting (at 0 flue resistance) Number FIXED FIXED 2.0 4.8 2.0 4.0 6.0 6.0 6.0 6.0 Air Setting (at 0 flue resistance) Number 2.25 3.75 3.4 5.0 5.5 4.5 5.5 2.1 2.8 3.0 Air Setting Start Number n/a n/a n/a n/a n/a 3.5 4.0 n/a n/a n/a CO2 (1) % 11.1 11.5 11.7 11.5 12.0 11.9 12.6 12.0 11.7 12.8 Gross Flue Temperature (20∞C ambient)
°C 230 310 330 375 325 355 325 345 380 335
(1): CO2 figure can be subject to fluctuations in different installations on site (see § 5.2.1 /g) FSV/FSH Model
Frame Size 1 2 3 4 5
Heat Input Gross Nozzle Heat Input Net Heat Output Pump Pressure
S+S
S+SS+S

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table 1b
FSV/FSH model 29 44 60 88 117 150 175 205 235 293
FRAME size I II III IV V
Nominal air flow m³/h
ft³/min
2500 1488
2500 1488
5180 3083
5180 3083
7140 4250
8750 5208
10500
6250
12800
7619
14100
8393
17330 10315
Available outlet pressure (ducted outlet) Pa 95 95 130 130 125 150 200 250 160 250 Air throw (approx) (1) m
ft
18 59
18 59
21 69
21 69
20 66
25 82
25 82
30 98
25 82
30 98
Temperature rise through heater (nominal)
°K °F
36 65
52 93
34 61
50 89
49 88
50 90
50 89
47 84
49 87
49 88
Sound level (2) (for guidance only) dB(A) 52 52 53 53 59 61 61 65 63 67 Flue spigot outside diameter mm 125 125 150 178 178 178 178 223 223 223 Minimum flue height m 2 22222222 2 Main fan motor size kW 0.55 0.55 0.736 0.736 1.5 2.2 3 4 4 5.5 Total absorbed electric power kW 0.91 0.91 1.60 1.60 2.41 2.76 4.60 5.80 5.47 8.39 Electrical supply 230/240V – 1N E50Hz 400/415V – 3N E50Hz Inlet oil connection ins BSP 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 Weight (without burner) kg 190 190 225 225 280 292 300 320 360 380
(1) : unobstructed in still air with a terminal velocity of 50ft/min. (2) : Condition R=5m; Q=2; A=160; louvres in neutral position

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2.2 Dimensions
Vertical heater range
Figure 1a : unit with discharge nozzle
Front view
Figure 1b : unit with discharge plenum
Front view

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Figure 1c – Side view Figure 1d
Figure 1e Figure 1f : burner mounting flange
air inlet
air inlet

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Horizontal heater range
Figure 2a – Side view
Figure 2b – Front view
Remark :
The fixation eyes (4x dia 22.5) may only be used to put the unit into horizontal position after delivery. It is strictly forbidden
to use the fixation eyes for suspending the unit.

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Dimensions (mm) (table 2)
FSV/FSH 29 44 60 88 117 150 175 205 235 293
Frame size I II III IV V
A1/A2 613 613 859 859 1158 1158 1305 1305 1504 1504
C1/C2/C3 865 865 865 865 795 795 1186 1186 1186 1186
D1/D2/D3 1007 1007 1019 1019 1041 1041 1184 1184 1111.5 1111.5
E1/E2/E3 1441 1441 1465 1465 1637 1637 1750 1750 1677.5 1677.5
outside dia 2
(flue outlet) 125 125 150 150 178 178 178 223 223 223
F1/F2/F3 1804 1804 1804 1804 2012 2012 2073 2073 2012 2012
inside dia 1
(burner inlet) 110 110 120 120 140 140 155 155 155 155
H1 2088 2088 2168 2168 2376 2378 2477 2477 2466 2466
H2 2164 2164 2114 2114 2400 2400 2395 2395 2334 2334
K1/K2 35.5 35.5 107.5 35.5 32 32 105.5 33.5 32.7 32.7
L 520 520 591 591 675 675 786 786 675 675
M 1284 1284 1213 1213 1337 1337 1287 1287 1337 1337
P1 284 284 364 364 364 366 404 404 454 454
P2 360 360 310 310 388 388 322 322 322 322
dia BC 142 142 145 145 162 162 180 224 180 224
R M8M8M8M8M8M8M8M8M8M8
S 100.4 100.4 102.5 102.5 114.5 114.5 127.3 158.4 127.3 158.4
2.3 Number of nozzles on heaters (figure 3)
29 - 44 60 - 88 117 - 293

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3.0 Mechanical/Electrical Services
3.1 Oil supply
3.1.1 Connection to an oil supply may only be
carried out by suitably qualified persons.
The oil installation must comply with the
rules in force using materials appropriate for
oil installations.
3.1.2 Check that the oil grade is in accordance
with the data described on the air heater.
3.1.3 An adequate oil line sized to provide the
dynamic pressure for the volume required
by the air heater(s) is essential to maintain
the nominal heat input.
3.1.4 A shut off tap and, to facilitate servicing, a
disconnect union fitting must be provided
adjacent to the appliance.
3.1.5 Ensure that the installations a filter and has
been tested and purged in accordance with
prescribed practice prior to commissioning
and taking the air heater into service.
3.2 Oil Pipework
3.2.1 The burners fitted to the Reznor air heaters
are suitable for Class D (35 sec) oil via a
suitable oil pipeline and filter to a storage
tank installed externally to the building.
3.2.2 The pipework can be constructed for use on
either a single pipe, or two-pipe system.
Whether a gravity feed or pumped system is
required is determined by the parameters of
the installation i.e. number of heaters and
length of pipeline.
3.2.3 Please refer to the burner manual as to the
limitations of the oil line and most suitable
pipe diameters after deciding on which
pipework system to adopt.
3.2.4 The storage tank and heater are to be
installed with the appropriate safety/service
components as shown by the following
figures.
Tank and single pipe system
Pressure ring main.
3.2.5 Any external piping from the tank or filter
should be adequately lagged to avoid
waxing during the winter.
Always ensure the correct grade of fuel is
used and especially ensure winter grade is
used for the winter period, as this will be
suitable down to –12°C whereas summer
grade will wax and plug the filter at –4°C.
3.2.6 When using a pumped ring main ensure that
correct pressure regulating valves are used
prior to each heater and a ring main
pressure below 0.4bar is used to avoid
aeration and consequential ‘air locks’.
3.2.7 All pipework must be adequately sealed
using approved sealing compounds suitable
for oil.
GALVANISED PIPEWORK AND FITTINGS
MUST NOT BE USED.
The pipework must be effectively sealed so
as to eliminate the ingress of air which will
ultimately stop the flow of oil.
3.3 Electrical connection
3.3.1 The electrical installation may only be
carried out by suitably qualified persons
observing the rules in force.
3.3.2 Check that the electrical specification is in
accordance with the specified data on the
air heater. A unique appliance wiring
diagram is supplied as a separate document
attached to this one, plus an additional copy
attached to the air heater.
3.3.3 These appliances must be earthen.
3.3.4 A lockable main switch must be installed
adjacent to each appliance and in view
when facing the service compartment. The
isolator must have a contact separation of at
least 3.0mm on all poles.
3.3.5 Ancillary controls (option 910.2) may be
included with the heater to provide timed
heat cycles, room comfort temperature
level, frost protection, override air
circulation, etc.
3.3.6 Ensure when planning the external
appliance control circuitry that power will be
supplied at all times to the air heater, even
when it is control switched in the ‘heat-off’
mode. This is necessary to ensure that the
fan can operate independently of the
heating control. Therefore never incorporate
automatic controls that electrically isolate
the appliance.
Figure 4 : Option 910.2
Legend
1 frost stat 4 fan control
2 room stat 5 burner control
3 programmable clock 6 fuse

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3.4 Ventilation requirements
3.4.1 It is essential that sufficient fresh air is
provided for combustion and room
ventilation.
Most traditional building constructions have
a natural air change rate of at least 0.5/h.
Where it is known that the air change rate is
at least 0.5/h and the volume of the heated
space is greater than 4.7m3per kW of total
rated heat input, additional ventilation is not
required.
3.4.2 Building volume limits for Reznor
floorstanding heaters based upon 4.7m3
per kW of rated heat input for one air
heater only (table 3).
Frame Model
Heat
Input
kW
Room
Volume
m3
29 38.0 180
I
44 57.1 268
60 76.1 357
II
88 114.2 536
117 152.2 715
III
150 190.2 894
175 228.3 1073
IV
205 266.3 1251
235 304.4 1416
V
293 375.4 1764
If the minima volumes stated above exist
together with appropriate similar allowances
for other combustion plant that may be
installed in the same space or zone, then
additional ventilation is not required.
3.4.3 Where it is known that the air change rate is
less than 0.5/h or where the building column
is less than 4.7m3per kW of heat input
ventilation grilles must be provided at low
level, i.e. below the level of the appliance
flue connection. In cases where doubt
exists over the air change rate ventilation
should be provided.
For air heaters of heat input less than 60kW
the total minimum free area shall not be less
than 4.5 cm2per kW of total rated heat input
for low level inlet and 2.25cm² for high level
inlet.
For our heaters of heat input 60kW or more
the total minimum free area shall not be less
than 540cm2plus 4.5cm2per kW in excess
of the 60kW rated heat input for low level
grills and 270cm² plus 2.25cm² per kW in
excess of the 60kW rated heat input for high
level outlet grills.
3.4.4 Air Supply Requirement for Combustion
and Ventilation (table 4).
Frame
FSV
Model
Heat
Input
(kW)
Low
Level
Grill
(cm²)
High
Level
Grill
(cm2)
29 38.0 171 86
I44 57.1 257 128
60 76.1 882 441
II 88 114.2 1054 527
117 152.2 1225 612
III 150 190.2 1396 698
175 228.3 1567 783
IV 205 266.3 1738 869
235 304.4 1910 955
V293 375.4 2229 1115
Note: Ventilation grilles must be installed so
that air is drawn directly from outdoors. In
the event that communication from the
space where the heater is installed to
outdoors is via another room then the route
to outdoors must be ducted through the
communicating area.
The grille velocity for all air supply must not
exceed 2.0 m/s. Grilles should be sited
where they cannot easily be blocked or
flooded. Notices should be provided
advising about the need to keep air supply
grilles unobstructed.
3.4.5 Where mechanical ventilation is used it shall
be by mechanical inlet with either
mechanical or natural extraction. Automatic
means of control such as interlocks must be
provided. The function of other ventilation
plant in the zone must be taken into
account. At no time should it be possible to
create a negative pressure in the zone as
this will lead to a hazardous situation
whereby the air heater flue will act as a
pressure relief.
3.4.6 Normally floorstanding air heaters, which are
used in the free blowing mode, i.e. without
discharge air ducting, are installed within
the room to be heated. If it is necessary to
install the air heater in a separate room and
blow the air into an adjoining room then a
short duct may be used to connect the
appliance to the air discharge louvre.
A return air grille must be provided to
ensure that an unobstructed path for
recirculation air back to the air heater is
maintained. This is to ensure that a
negative pressure cannot develop within the
space where the air heater is installed.

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Grilles sized in accordance with table below
must be installed at low level. Sizes stated
must be regarded as the minimum free area
size to be fitted.
Such grilles should be situated as low as
possible in the dividing wall and in a location
where they are unlikely to become
obstructed. It is recommended that a guard
be fitted to prevent obstruction, i.e. stored
materials.
Permanent notices should be fitted in a
prominent location on either side of the grille
worded "This grille must be kept clean and
unobstructed at all times".
Return air grille sizes based upon the
appliance operated at standard air flow.
(table 5)
Frame
FSV
FSH
Air
Volume
m3/h
Grille size
CM2
29 2500 3480
I44 2500 3480
60 5180 7200
II 88 5180 7200
117 7140 9900
III 150 8750 12160
175 10500 14600
IV 205 12800 17800
235 14100 19500
V293 17330 24000
For spigot connection sizes to heater see
fig. 10 & table 10 in section 5
For appliances operating at higher air
volumes the size should be calculated to
ensure that the grille velocity does not
exceed 2.0 metres per second.
3.4.7 Where ducted floorstanding heaters are
installed within a separate room from the
space being heated and the appliance does
not have a direct supply connection to the
outside, a return air grille must be provided
to ensure that an unobstructed path for
recirculation of air back to the heater is
maintained. This is to ensure that a
negative pressure cannot develop within the
space where the air heater is installed.
3.5 Electronic time switch
Group 884 switches & push buttons
functions
3.5.1 884 Timer programming
Press R (reset) to clear any previous inputs
Set button ‘clock-RUN-P ‘ to button ‘clock’
Set time of day using h(hours) and
m(minutes) buttons
Set actual day using 1---7 push button.
An arrow under the required day will be
displayed.
Set button ‘clock-RUN-P’ to RUN
Actual time and day will be displayed
(flashing colon).
Set button ‘clock-RUN-P’ to button P
Select day or group of days by pressing 1---
7 button (arrow will indicate in the display
the selection)
Select ON/OFF switch selection (9 ONS & 9
OFFS) by pressing push button P (number
and symbol in the display indicates
selection)
Select time of ON/OFF program required by
pressing h & m buttons
“Ensure day or group of days selected as
required for each ON/OFF programming”
When all the switching selections for the set
days are completed, set button “clock-RUN-
P” to RUN.
If the programming has not been completed
correctly the display will show E EE*
indicating an error, with a number *
indicating which ON/OFF position has been
incorrectly programmed.
Ensure I AUTO O set to AUTO.
Timer is now set to run automatically on
times programmed.
To use skip function X→
Press grey push button above skip sign
(The sign will be displayed in display
indicating selection).
The skip function will then operate from
midnight for 24h. During this period a
flashing arrow will be displayed under the
applicable day (program commences again
24 hours on).
3.5.2 Switches & push buttons functions
Switches
I AUTO O :
I selected = timer permanently ON
O selected = timer permanently OFF
AUTO = timer operating to program selected
Button “clock RUN P”
Selected clock :
allows actual time of day to be set using h &
m buttons
allows actual day to be set using 1---7
buttons
Selected P :
enables push buttons to be used to set
program ON & OFF times
RUN selected :
Displays time of day and allows set program
to run
Push buttons
1234567
The arrow displayed under the number as
selected by pushing 1---7 button indicates
day or group of days selected for
programming ON/OFF times.
This button selects the 18 programme
memories (9 ON & 9 OFF) as indicated in
the display (depending on selected repeat
programmes up to 126 switching selections
per week).

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1---7
This button selects :
Single days
M,T,W,Th, Fri group (5 days)
Sat, Sun group (2 days)
M,T,W,Th,Fri,Sat group (6 days)
M,T,W,Th,Fri,Sat,Sun group (7 days)
h
This button selects units of hours
increasing. Held for approx 3 secs or more
a fast run/increase operates.
m
This button selects units of minutes
increasing. Held for approx. 3 secs or more
a fast run/increase operates
X→
This button selects a soft override ie skips
the next day programme without clearing the
total set programme. Commences at
midnight of day selected and continues for
24hrs allowing first programme of following
day to commence normal running, sign is
displayed.
R
This button provides a reset function for
clearing the complete programme and time
of day.
4.2.2 Operation of buttons :
4.0 Installation
4.1 Location
4.1.1 Ensure the structural elements of the building are
adequate to carry the weight of the appliance
and its ancillary components, i.e. the flue system,
and that the surface on which the heater is
located is level in all plains and non-combustible.
4.1.2 Sufficient space must be maintained around the
heater for servicing and the appliance should not
be sited where it may suffer damage, e.g. fork lift
trucks or traffic.
4.1.3 The location must also allow for fitting an
effective flue system and for adequate clearance
for the air supply, return air, circulation, oil and
electrical supplies whilst providing good and safe
working access.
4.1.4 When positioning the heater it is strongly advised
that the lifting eyes are used. Adequate
clearance from combustible materials must be
maintained between the appliance and its flue
system.
4.2 Heater clearances
4.2.1 The following minimum clearances must be
observed when installing the heater to enable
easy maintenance of the heater:
Minimum clearance around a vertical heater (table 6)
FSV
Frame
*
Front
LHS
RHS
Rear
**
Top
29 800 500 500 500 1200
44
I
800 500 500 500 1200
60 800 500 500 500 1500
88
II
800 500 500 500 1500
117 900 600 600 600 1500
150
III
900 600 600 600 1500
175 1000 800 800 600 1750
205
IV
1000 800 800 600 1750
235 1000 1000 1000 2000 2000
293
V
1000 1000 1000 2000 2000
* Measured from front panel.
** Measured from top of outlet nozzle.
All dimensions in mm.
Front is when looking at the burner.

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4.2.2 The horizontal floorstanding heater (FSH) must be
suspended as illustrated in figure 5. When
suspending the horizontal units, ensure the structural
elements of the building are adequate to carry the
weight of the appliance and its ancillary components
(e.g. : flue system, duct system, ...). Unit may only be
suspended by means of a frame on which the unit
must be installed. It is strictly forbidden to make use
of the fixation eyes to suspend the unit!
Figure 5 :
Minimum clearance around a horizontal heater
table 7
FSH Frame front* Rear side Bottom Top
29 800 500 500 500
44
I
800 500 500 500
60 800 500 500 500
88
II
800 500 500 500
117 900 600 600 600
150
III
900 600 600 600
175 1000 600 800 800
205
IV
1000 600 800 800
235 1000 2000 1000 1000
293
V
1000 2000 1000 1000
* Measured from front panel
When unit is installed as a duct heater, the
duct connections must be installed as
described in § 5.5.3. Ensure the dimensions
of inlet & outlet duct are the same.
When the air intake is installed without a
grille at the backside of the unit, ensure that
a protection grille IP20 is installed to avoid
the penetration of objects into the blower
compartment.
4.3 Flue
4.3.1 Reznor floorstanding heaters must be
connected to a flue system venting the
products of combustion directly to outdoors.
Flue systems must be installed in
accordance with the rules in force taking
into account the location of flue termination
relative to the construction elements of the
building, i.e. windows, roof levels, etc., and
in accordance with statutory requirements.
4.3.2 Reznor recommends that appliances be
connected to individual flues sized in
accordance with the diameter appropriate to
the appliance flue connection socket.
Flues must be terminated with an approved
terminal fitting.
Attention: ensure that the connection of the
flue to the floorstanding heater is completely
air tight or sealed.
4.3.3 A minimum length of 2.0m is required to
ensure a good flue draught condition.
4.3.4 Install the flue elbow or T-with drip pan
directly into the appliance flue socket and
secure firmly using self-tapping
screws. Seal the joint with high temperature
sealant or fibreglass rope and fire clay.
4.3.5 The use of twin wall flue should be
considered if condensation in the flue
system is a possibility.

15/31
Figure 6
4.4 Free blowing nozzled Heaters
4.4.1 Nozzle boxes (options 203 / 203.2)
When the unit is ordered with option 203 or
option 203.2 (nozzle boxes), the nozzle top
plate is installed on the unit. The nozzle
boxes are supplied loose and must be
installed on the top plate of the heater
Nozzle boxes:
Option 203 for FSV models or option
203.2 for FSH models (see also fig. 7).
The nozzle boxes (*) are supplied loose and
must be installed on the top plate of the
heater (as shown in figure 7). Each nozzle
box must be correctly positioned in order to
obtain the desired air distribution.. The
louvres can be adjusted. It is forbidden to
close all louvres at a time as overheating
could occur. For safety reasons it is
recommended to wear gloves & glasses
when adjusting the louvres.
(*) :Quantity of nozzle boxes & fixing screws
2 for type 29 & 44 + 4 fixing screws
3 for type 60 & 88 + 6 fixing screws
4 for type 117→293 + 8 fixing screws
It is recommended to fix the nozzle boxes to the
top panel using 2 fixing screws. This will secure
the nozzle boxes particularly when applied on
Figure 7 : Nozzle box

16/31
4.4.2 Discharge plenum (option 203.3) (figure 8)
The discharge plenum is designed to be
installed on top of the FSV series. When
ordered with this option, the unit is
delivered without top plate so that the
discharge plenum can easily be pushed in
the top outlet of the unit. A plastic bag
contains the needed fixing screws (qty 12
for the sizes 29 & 44 / qty 14 for the size 60
& 88 / qty 16 for the sizes 117 & 150 / qty
16 for the sizes 175 & 205 and qty 18 for
the sizes 235 & 293) (see fig. 8).
The horizontal louvres may be adjusted
from horizontal to vertical down blow to
obtain proper deflection and air pattern.
For safety reasons, it is recommended to
wear gloves and glasses when adjusting
the louvres.
Number of horizontal louvres per side :
Table 8a
FSV N° of
sides Hor. louvres
29/44 4 4
60/88 4 3
117/150 4 5
175/205 4 3
235/293 2
2
3
2x3
The different “Open/Closed” combinations
of the louvres :
-during heating all louvres may be fully
opened
-1 fully open & 3 fully closed louvres (all
directions)
-2 fully open & 2 fully closed louvres (all
directions)
-for protection of fan motor and proper
heater operation do not close all
louvres at a time
-a minimum of 2 open louvres per
direction must always be respected
4.4.3 Vertical louvres (option 207.1) (fig. 9)
The discharge plenum (option 203.3) can
be equipped with vertical louvres thus
enabling a horizontal deflection of the air
(max. !150°). The vertical louvre frame
must be securely screwed in the openings
(outlets) foreseen in the bottom and upper
side of the plenum.
When adjusting the vertical louvres wear
gloves and glasses.
Closing all the vertical louvres at a time is
forbidden as this could result into an air
obstruction influencing the LC3 (maximum
temperature thermostat).
The number of vertical louvre assemblies, the
vertical louvres and the fixing screws vary per
model :
Table 8b
FSV Vertical
louvres
assy
Vertical
louvres
Fixing
screws
29/44 4 6 24
60/88 4 8 24
117/150 2
2
10
824
175/205 4 8 24
235/293 4
2
8
10 36
Figure 8 : Nozzle plenum
Figure 9 : Vertical louvres

17/31
4.5 Ducted Heaters
4.5.1 The Reznor ducted floorstanding heater is
designed to be used with discharge ducting.
A positive seal should be made between
any ducting and the air heater. A flexible
connection is desirable to eliminate
transmission of noise and to take account of
thermal expansion.
4.5.2 Consideration should be given to the
application of duct fittings directly connected
to the appliance. Air outlet elbows,
transitions etc. should be designed to
ensure an unrestricted and turbulent free air
flow. This requirement is to ensure than an
even air temperature is maintained when
leaving the appliance thus eliminating heat
exchanger "hot-spots" and nuisance shut-
down of the burner due to over heating.
4.5.3 Fig. 10 illustrates the principle and the
method of fixing duct channels to the heater
-duct channels must have adequate duct
flanges to fit into the frame structure of the
heater
-the dimensions DA refer to the duct flange;
the dimensions DB refer to the duct
channel itself
-duct flanges must be screwed to the frame
structure; holes are provided in the frame
Remark : fig. 10 shows ducted air inlet fixation – same
fixation method applies for ducted air outlet
Figure 10
Attention must be given to the motor load when
applying discharge ducting. Duct outlets must be
adjusted when necessary to meet the values
mentioned in table 9.
Table 9
Frame Model Nominal
airflow
Available outlet
static pressure
Motor load
(maximum)
Motor current
normal use (*)
Voltage
m³/h Pa (A) (A) (V)
Standard airflow conditions
I29/44 2500 95 4.00 3.4 230V – 1N
II 60/88 5180 130 9.00 7.8 230V – 1N
117 7140 125 3.20 2.3 400V – 3N
III 150 8750 150 5.08 3.7 400V – 3N
175 10500 200 6.60 5.4 400V – 3N
IV 205 12800 250 8.50 8.4 400V – 3N
235 14100 160 9.00 7.0 400V – 3N
V293 17330 250 11.50 11.0 400V – 3N
High airflow conditions (when option 403 is applied)
Frame III 117 8750 150 5.08 3.7 400V – 3N
Frame IV 175 12800 250 8.50 8.4 400V – 3N
Frame V 235 17330 230 11.50 11.0 400V – 3N
High outlet static pressure conditions (when option 404 is applied))
Frame III 117 7140 205 5.08 3.7 400V – 3N
Frame IV 175 10500 350 8.50 8.4 400V – 3N
Frame V 235 14100 330 11.50 11.0 400V – 3N
(*) Current is measured in cold air conditions (heating off) while unit is working at standard air flow. However, measuring motor current of
10% lower than the figures mentioned in table 9, means that the air flow will be lower and the <T higher. In this case overheating can
occur. To avoid this problem, larger outlets must be provided. In case motor current is greater than the maximum motor load (mentioned
in table 9) duct outlet openings must be decreased so that motor load becomes lower.
We strongly recommend respecting the figures given in table 9.

18/31
4.5.4 Ducted air outlet on FSV/FSH units
(= std. option 206.1)
In this situation, the unit is delivered
without nozzle boxes (option 203) or outlet
discharge plenum (option 203.3). The
duct channels must be connected to the
air outlet(= on top of the heater for vertical
model or at the left side of the heater for
horizontal models). Respect the
dimensions for the duct air outlet (DA) and
for the flange (DB) as indicated in table
10a & 10b.
Table 10a (refer to fig. 10) : duct dimensions required for ducted outlet on VERTICAL model (FSV)
VERTICAL MODEL FSV
Duct flange dimensions
DA (mm)
Duct channel dimensions
DB (mm)
Frame Model
Width Depth Width Depth
I 29/44 761 509 721 469
II 60/88 761 755 721 715
III 117/150 691 1054 651 1014
IV 175/205 1082 1201 1042 1161
V 235/293 1082 1400 1042 1360
Table 10b (refer to fig. 10) : duct dimensions required for ducted outlet on HORIZONTAL model (FSH)
HORIZONTAL MODEL FSH
Duct flange dimensions
DA (mm)
Duct channel dimensions
DB (mm)
Frame Model
Height Depth Height Depth
I 29/44 761 509 721 469
II 60/88 761 755 721 715
III 117/150 691 1054 651 1014
IV 175/205 1082 1201 1042 1161
V 235/293 1082 1400 1042 1360
Attention must be given to the motor load when applying discharge ducting. Duct outlets must be adjusted when necessary
to meet the values mentioned in table 9.
4.5.5 Ducted air inlet on FSV/FSH units
The unit is designed so that it can be
installed with inlet air ducts.
Vertical units :
Option 541.1 = left
Option 541.2 = right
Option 541.3 = rear
Horizontal units :
Option 541.4 = end
Option 541.5 = top
Option 541.6 = rear
Option 541.7 = bottom
To enable free blowing of the air into the
blower system, it is forbidden to install air
baffles or elbows in the last part (

0.75m)
of the duct connected to the heater.
Respect the normal motor current as shown in
table 9 as a normal motor current guarantees
a normal air flow and a normal <T. Respect
dimensions for duct air inlet (DA) and for the
flange (DB) as indicated in table 11a & 11b
Attention : Never install the inlet air ducts
in combination with the standard
protection air inlet grille. This situation
may constitute a hazard & jeopardise all
warranties.
Table 11a (refer to fig. 10)
VERTICAL MODELS FSV
Duct flange dimensions
DA (mm)
Duct channel dimensions
DB (mm)
Frame Model Option
Height Width Height Width
541.1 (left
541.2 (right) 441 509 401 469
I 29/44
541.3 (rear) 441 761 401 721
541.1 (left)
541.2 (right) 512 755 472 715
II 60/88
541.3 (rear) 512 761 472 721
541.1 (left)
541.2 (right) 596 1054 556 1014
III 117/150
541.3(rear) 596 691 556 651
541.1 (left)
541.2 (right) 707 1201 667 1161
IV 175/205
541.3 (rear) 707 1082 667 1042
541.1 (left)
541.2 (right) 596 1400 556 1360
V 235/293
541.3 (rear) 596 1082 556 1042

19/31
Table 11b (refer to fig. 10)
HORIZONTAL MODELS FSH
Duct flange dimensions
DA (mm)
Duct channel dimensions
DB (mm)
Frame Model Option Height (1)
Depth (2) Width Height (1) Depth (2) Width
541.5 (top)
541.7 (bottom) 509 441 469 401
541.6 (rear) 761 441 721 401
I 29/44
541.4 (end) 761 509 721 469
541.5 (top)
541.7 (bottom) 755 512 715 472
541.6 (rear) 761 712 721 672
II 60/88
541.4 (end) 761 755 721 715
541.5 (top)
541.7 (bottom) 1054 596 1014 556
541.6 (rear) 1054 596 1014 556
III 117/150
541.4 (end) 691 1054 651 1014
541.5 (top)
541.7 (bottom) 1201 707 1161 667
541.6 (rear) 1082 707 1042 667
IV 175/205
541.4 (end) 1082 1201 1042 1161
541.5 (top)
541.7 (bottom) 1400 596 1360 556
541.6 (rear) 1082 596 1042 556
V 235/293
541.4 (end) 1082 1400 1042 1360
(1) : Depth : top/bottom
(2) : Height : end/rear
4.5.6 Air inlet via an air inlet duct with extra
filter cabinet (option 501.x) (fig. 11).
The cabinet is equipped with sliding rails
for installing the flat filter elements. EU4
panel filters (1”) can be used.(1”).
The filter elements can be replaced
without removing the duct.
The tables 12a & 12b on next page show
the different possibilities and option
numbers.
Figure 11

20/31
Table 12a
VERTICAL MODEL
Frame Model Option Location Dimensions
(mm)
Qty DX
(mm)
DY
(mm)
DZ
(mm)
I 29/44 501.7 Rear 622x394 2 443 763 466
I 60/88 501.7 Rear 622x394 3 514 763 471
III 117/150 501.7 Left 495x495 6 598 1056 465
IV 175/205 501.7 Left 495x495 6 709 1203 560
V 235/293 501.7 left 622x495 6 598 1402 567
Table 12b
HORIZONTAL MODEL
Frame Model Option Location Dimensions
(mm)
Qty DX
(mm)
DY
(mm)
DZ
(mm)
I 29/44 501.8 End 622x394 1 763 511 176
I 60/88 501.8 End 622x394 3 763 757 446
III 117/150 501.8 End 495x495 6 693 1056 454
IV 175/205 501.8 End 495x495 6 1084 1203 502
V 235/293 501.8 end 622x495 6 1084 1402 502
4.6 Filters (options 501.1 / 502.1) (fig. 12)
(only for vertical heater model FSV)
The floorstanding heaters can be equipped
with panels with sliding rails for filter
elements (= option 501.1)
EU4 panel filter (1”) can be fitted to this
heater (option 502.1). We refer to table 13a
& 13b for more details.
Filters must be inspected on a regular basis
as dirty filters can affect the safe working of
the unit.
For safety reasons it is recommended to
wear gloves & glasses when inspecting the
filters. Dirty filters should be carefully
handled and must be packed in plastic bags
– never throw them in the usual dustbin.
Attention
It is forbidden to use filters with standard
air intake panels. The pressure drop
would become too high resulting into
overheating of the heater.
Table 13a : Panel filters for vertical units
Frame Model Location Qty Dim (mm)
side 0 no filters
I29
44 rear 1 394x622
side 2 394x622
II 60
88 rear 1 394x622
side 2x2 495x394
III 117
150 rear 1 495x622
side 2x2 495x495
IV 175
205 rear 1
1
495x495
495x394
side 2x2 495x622
rear 2 495x394V235
293
front 1 495x622
Table 13b : Panel filters for horizontal units
Frame Mod Location Qty Dim (mm)
right (end) 1 394x622
I29
44 top 0
right 2 394x622
II 60
88 top 1 394x622
right 1
1
394x495
622x495
III 117
150 top 2 394x495
top 2 495x495
IV 175
205 right (end) 4 495x495
top 2 495x622
front 1 495x622V235
293
right (end) 4 495x622