Biddle PS Series User manual

Modular fan coil unit
Model PS
Version 2.1
17-07-2018
English
Manual
Q P

B
2 Manual model PS
Copyright
All the information and drawings in this man-
ual are the property of Biddle and may not be
used (other than for the actual operation of
the device), photocopied, duplicated, trans-
lated and/or be brought to the attention of
third parties without Biddle’s prior written
permission.
The name Biddle is a registered trademark.
Trademarks
The name Biddle is a registered trademark of
Biddle bv.
Warranty and liability
Please refer to Biddle's Terms of Sales and
Delivery for warranty and liability conditions.
Biddle excludes liability for consequential
loss at all times and under all circumstances.
Liability for the contents of
this manual
However much care might have been taken
in ensuring the correctness and, where nec-
essary, completeness of the description of
the relevant parts, Biddle disclaims all liability
for damage resulting from any inaccuracies
and/or deficiencies in this manual.
Should you detect any errors or ambiguities
in this manual then we would be pleased to
hear from you: it helps us to improve our
documentation even further.
Biddle retains the right to change the specifi-
cations stated in this manual.
For more information
If you have any comments or questions
about specific topics relating to this product,
please do not hesitate to contact Biddle.
Addresses
United Kingdom
Biddle Air Systems Ltd.
St. Mary’s Road
Nuneaton
Warwickshire CV11 5AU
United Kingdom
telephone: [phone]
fax: [phone]
e-mail: [e-mail]
internet: www.biddle-air.com
Other countries
Biddle Export
PO Box 15
NL-9288 ZG Kootstertille
The Netherlands
telephone: [phone]
fax: [phone]
e-mail: [email protected]
internet: www.biddle.info

Modular fan coil unit Contents
Version 2.1English (17-07-2018)3
Contents
1Introduction ........................4
1.1 About this manual ............................. 4
1.2 How to use this manual .................... 4
1.2.1 Marginal symbols in the manual ......... 4
1.2.2 Pictograms used on the unit and in
the manual................................................... 4
1.2.3 Related documentation....................... 4
1.3 About the unit.................................... 5
1.3.1 Applications ........................................ 5
1.3.2 Working............................................... 5
1.3.3 Modules .............................................. 5
1.3.4 Type code ........................................... 6
1.3.5 Type plate ........................................... 6
1.4 Components ..................................... 6
1.4.1 Required components......................... 6
1.4.2 Accessories ........................................ 7
1.4.3 Parts not supplied............................... 7
1.5 Safety instructions ............................ 7
1.5.1 Operation............................................ 7
1.5.2 Installation, maintenance and
service ......................................................... 7
2Installation..........................8
2.1 Safety instructions ............................ 8
2.2 Delivery check .................................. 8
2.3 General instructions.......................... 8
2.3.1 Order of working ................................. 8
2.3.2 Miscellaneous..................................... 8
2.4 Installing the wall duct ...................... 8
2.5 Installing the roof duct ...................... 9
2.6 Suspending the unit........................ 10
2.6.1 Positioning ........................................ 10
2.6.2 Installing the suspension rail............. 10
2.6.3 Suspending and securing modules....11
2.7 Connecting the valve motor............ 12
2.8 Connecting ducts ............................ 12
2.9 Connecting the unit to the CH
and/or CW system ................................ 12
2.9.1 Water connections ............................ 12
2.9.2 Frost protection................................. 13
2.9.3 Connecting water pipes .................... 13
2.10 Connecting the condensate drain. 13
2.10.1 Particulars....................................... 13
2.10.2 Connecting the condensate drain... 13
2.11 Connecting the unit to mains
power supply......................................... 14
2.11.1 General ........................................... 14
2.11.2 Connecting to mains ....................... 14
2.12 Installing the controller.................. 14
2.13 Switching on and checking
operation............................................... 14
3Maintenance ....................16
3.1 Safety instructions .......................... 16
3.2 Replacing the filter .......................... 16
3.2.1 Introduction....................................... 16
3.2.2 Replacing flat-bed filter in base
module....................................................... 16
3.2.3 Replacing bag-type filter or pleated
filter............................................................ 16
3.3 Cleaning.......................................... 16
3.4 Scheduled maintenance ................. 16
4Service.............................18
4.1 Safety instructions .......................... 18
4.2 Opening the unit ............................. 18
4.2.1 Base module..................................... 18
4.2.2 Electronics compartment .................. 18
4.3 Fuses .............................................. 19
4.4 High-limit thermostat....................... 19

B
4 Manual model PS
1 Introduction
1.1 About this manual
This manual describes the installation and
maintenance of the modular fan coil unit,
model PS.
This manual only relates to the unit itself. A
separate manual covers the operation and
control of the unit.
1.2 How to use this manual
1.2.1 Marginal symbols in the manual
n Note:
Draws your attention to an important part of
the text.
cCaution:
If you do not carry out this procedure or
action correctly, you may damage the unit.
So, follow the instructions carefully.
wWarning:
If you do not carry out this procedure or
action correctly, you may cause material
damage and/or physical injury.
So, follow the instructions carefully.
dDanger:
This indicates actions which are not per-
mitted. Ignoring this warning may lead to
serious damage or accidents that may
involve physical injury.
For units with … :
With ... module:
The description applies only to models that
have the feature referred to.
If no specific model is referred to, the de-
scription applies to all models.
1.2.2 Pictograms used on the unit and
in the manual
The below pictograms refer to possible risks
or dangers. These pictograms can also be
found on the unit.
ê wWarning:
You are entering an area which
contains live components.
Accessible to qualified mainte-
nance staff only. Caution is
urged.
ç wWarning:
This surface or part can be hot.
There is a risk of burns on con-
tact.
1.2.3 Related documentation
Besides this manual, the following docu-
ments come with the unit:
-documentation for control and operation
(if applicable);
-wiring diagram for installation and ser-
vice purposes.

Modular fan coil unit 1Introduction
Version 2.1 English (17-07-2018) 5
1.3 About the unit
1.3.1 Applications
The modular fan coil unit is designed for
heating, cooling and/or ventilating rooms.
The inlets and outlets of the unit are posi-
tioned in such a way that the discharged air
flow is distributed evenly across the room
without causing discomfort to the people in it.
The unit’s dimensions are geared to integrat-
ing the unit in suspended ceilings.
1.3.2 Working
The fan coil unit blows a flow of air into the
room. The air may be taken in, at the user’s
option, either from outside (ventilation) or
from the room itself (recirculation). Thus, the
unit offers two benefits:
-The room is kept at the desired tempera-
ture.
-Gradual deterioration of air quality in the
room is counteracted.
1.3.3 Modules
A modular fan coil unit is made up of mod-
ules. Each module has its specific function.
By combining different modules, modular fan
coil units with different features can be com-
posed.
Type references and symbols of modules
PS B base
module
PS P plenum
module
PS F filter
module
PS FP pleated
filter
module
PS L air valve
module
PS G attenuation
module
PS V heating
module
(water)
PS VE heating
module
(electric)
The symbols can be found on the underside
of each module. On the base module, these
symbols indicate the order of the modules of
the delivered modular fan coil unit.

B
6 Manual model PS
1.3.4 Type code
The type references, when combined, consti-
tute the type code of the unit's modules, for
instance:
PS B-20-H1-M
PS P-21
PS G-40
PS V-61-H1C3-I
Various combinations can be made.
Explanation of type code
series PS modular fan
coil unit
module B, P, F, FP,
L, G, V, VE
see Section
1.3.3
capacity 20, 21, 40,
41, 60, 61
H1, H2,
H3, H4
water heating
C3, C4 water cooling
H1C3,
H2C2
water heating
and cooling
with base
module and/or
heating module:
heating and/or
cooling
HE electric heating
M modulating
control
S speed control
I Interface, either
with or without
touch control
B Basic, without
control
with base
module:
electronic
control
without
reference
not described
in this manual
1.3.5 Type plate
The type plate is located on the base mod-
ule.
Type PS B-40-H2-M
Code U 230 V ~ 50 Hz
Biddle bv
Markowei 4
NL-9288 HA Kootstertille Nº 123456/1-1 07-12 I
max
L1 0.88 A
I
max
L2 -
M 51 kg I
max
L3 -
Medium LPHW P
motor
0.20 kW
p
max
600 kPa P
heating
-
4023
Example of a type plate
References on the type plate
Type full type code of unit
Code if applicable:
unit code of electronic control
M weight of unit
Pmax with water heating:
maximum allowable operating
pressure
U supply voltage
Imax maximum amperage
Pmotor maximum power absorbed by fans
Pheating with electric heating:
maximum power absorbed by heat-
ing
1.4 Components
1.4.1 Required components
The following components are delivered
separately but are always required:
-mounting kit, consisting of a suspension
rail and fasteners for linking modules
-electronic control system components,
such as a controller, control cables, etc.
(see the documentation of the control
system)

Modular fan coil unit 1Introduction
Version 2.1 English (17-07-2018) 7
1.4.2 Accessories
The following optional accessories are avail-
able:
-water control unit
-servomotor for air valve module
-ventilation module for the control of an
extractor fan
-wall sleeve
-external air intake grille
-roof cap
-duct connection (PS TH and PS TV)
-flexible connection sleeves, with or with-
out connecting flange
-wall and ceiling grilles, fixed or adjust-
able
-condensate drain tray
-condensate discharge pump
1.4.3 Parts not supplied
The following parts are not supplied by
Biddle and should be procured from other
suppliers:
-threaded suspension rods (M8)
-mounting rail
1.5 Safety instructions
1.5.1 Operation
wWarning:
Do not put any objects in the inlets and
outlets.
Do not block the inlets and outlets.
ç
The upper surface of the unit can become
hot during operation.
1.5.2 Installation, maintenance and
service
wWarning:
The unit may be opened by qualified
technical staff only.
ê ç
Before opening the unit:
-Switch the unit off using the controller.
-Wait until the fans have stopped rotating.
-Allow the unit to cool down as the heat
exchanger or heating element can get
very hot.
-Disconnect the mains supply.
-Shut off the CH and/or CW supply (if
possible).
wWarning:
The fins of the heat exchanger are sharp.

B
8 Manual model PS
2 Installation
2.1 Safety instructions
wWarning:
Installation works may be performed by
qualified technical staff only.
Before opening the unit, follow the safety
instructions in Section 1.5.
2.2 Delivery check
-Check the unit and its packaging for
correct delivery. Report any transport
damage to the driver and supplier imme-
diately.
-Make sure that all parts and components
have been supplied (see Section 1.4).
Report any defects to the supplier imme-
diately.
2.3 General instructions
2.3.1 Order of working
Biddle recommends following the order of
working described in this section for perform-
ing the installation works.
n Note:
Make sure you perform all operations that
are required for the installation of your unit.
Check the type plate and refer to Section
1.3.5 if you are not sure about the model or
type of your unit.
2.3.2 Miscellaneous
cCaution:
The infiltration of coarse dust, cement, etc.
may damage the unit. So long as such con-
taminants are in the room,
-do not put the unit into operation;
-cover the inlets and outlets.
2.4 Installing the wall duct
Accessory, only in combination with air valve
module (PS L)
The wall duct is made up of a wall sleeve
and an external air intake grille. The wall duct
is made up of two parts which are slid into
one another.
Opening dimensions for wall duct
type opening, A x B wall thickness
PS 20, 21 628 x 142 mm
PS 40, 41 1003 x 142 mm
PS 60, 61 1503 x 142 mm
200 – 350 mm
or
350 - 650 mm
(dep. on type)
1 Apply the included expanding foam gas-
ket around the ventilation opening of the
air valve module.
2 Make an opening in the wall.
A
B

Modular fan coil unit 2Installation
Version 2.1 English (17-07-2018) 9
3 Fix the duct sections as you please, e.g.,
by bricking them in or by fixing them with
screws. If using screws, mind their posi-
tions: the screws must not hinder the in-
stallation of the external grille.
n Note:
Seal any gaps between sleeve and wall in a
draught- and leakage-free manner.
4 Drill the (∅ 5mm) grille fixing holes into
the flanges of the sleeve section that is
fixed to the outer wall.
5 Apply paste onto the inner side of the
grille flanges. The paste is to seal off the
gap between grille and sleeve in a
draught- and leakage-free manner.
6 Fix the grille to the flanges using sheet
metal screws.
cCaution:
Place the grille with the blades correctly
positioned: oriented outward to allow for run-
off.
2.5 Installing the roof duct
Accessory, only in combination with air valve
module (PS L)
The roof duct is made up of two parts: a roof
curb and a roof cap. The roof cap consists of
a cover and a sleeve. On delivery, these are
attached to one another.
Opening dimensions for roof duct
type opening, A x B
PS 20, 21 628 x 145 mm
PS 40, 41 1003 x 145 mm
PS 60, 61 1503 x 145 mm
1 Apply the included expanding foam gas-
ket around the ventilation opening of the
air valve module.
2 Make an opening in the roof.
3 Make a water-tight curb 1around the
opening.
4 Detach the cap from the sleeve. To do
so, loosen the screws in the upper side
of the sleeve.
5 Insert the sleeve into the opening. Con-
nect sleeve and curb by fixing screws 2
through the sleeve’s inner side.
6 Mount the cap to the sleeve.
n Note:
Seal any gaps between sleeve and roof in a
draught- and leakage-free manner.
A
B
Timber 70x70
Tar mastic
1
2

B
10 Manual model PS
2.6 Suspending the unit
2.6.1 Positioning
-Make sure that the structure from which
the modules are to be suspended can
carry the weight of the whole modular fan
coil unit.
Module weights
PS 20, 21 PS 40, 41 PS 60, 61
PS B 32 kg 51 kg 62 kg
PS P 8 kg 10 kg 12 kg
PS F, FP 10 kg 13 kg 16 kg
PS L 13 kg 16 kg 20 kg
PS G 18 kg 24 kg 31 kg
PS V, VE 15 kg 19 kg 22 kg
-Suspend the unit at a minimum height of
1.8 m.
-Suspend the modules level. This results
in proper venting of the heat exchanger
and (for units with cooling) in proper dis-
charge of condensate.
-Provide for proper sealing if wall or roof
sleeves and the like are installed. Im-
proper installation can cause draught
and condensate problems.
-Ensure the air can flow freely through the
unit’s inlets and outlets.
-Position the unit such that the modules
will be easy to access both during and
after installation.
2.6.2 Installing the suspension rail
The modules are hooked into the included
suspension rail n one side. On the opposite
side (connection side), the modules are
suspended from a thread rod. The suspen-
sion rail may either be suspended from a
thread rod 1(as illustrated above) or be
mounted directly onto the ceiling (as illus-
trated below).
1 Make a suspension structure using
thread rods, mounting rails and the sup-
plied suspension rail. On each thread
rod, apply two nuts at an intermediate
distance of about 4 cm 2.
Centre distance between mounting rails and
suspension rails
PS 20, 21 PS 40, 41 PS 60, 61
A 782 mm 1157 mm 1657 mm
n Note:
-Keep a minimum distance of 190 mm
between the centre of the suspension rail
and a wall or obstacle, such as a pillar.
This is to allow the modules to be
hooked in.
-Mount the rails in line with a possible
opening for a roof or wall sleeve.
A
190
1
2