Cotes CR100 Quick guide

INSTALLATION AND INSTRUCTION MANUAL
FOR CR100 DEHUMIDIFIER.
PRODUCTION NUMBER :
STOCK NUMBER: 100002
DOCUMENT NO. 100.05E
PAGE CONTENTS :
1 1. Principle of operation
3 2. Applications
4 3. Dimensions, in and outlet connections
5 4. Technical data, specifications
6 5. Components diagram, main components
8 6. Capacity diagram
7. Electric features :
9 7.1 Scematic electrical diagram
10 7.2 Wiring in cabinet
11 7.3 Power line filter
12 7.4 Electric components
12 7.5 Connection of humidistat
12 7.6 Electric connection, energy consumption
& air flows.
13 8. Installation
14 9. Start-up procedure
15 10. Maintenance
15 11. Trouble shooting
16 12. Service/repair
16 12.1 Safety instructions
16 12.2 Access to service/repair
16 12.3 Replacing of process air fan
16 12.4 Replacing of reg.-air fan
17 12.5 Replacing of rotor and heater
17 13. Sound data
04.05.00
C TES HB COTES A S
HB DEHUMIDIFICATION SYSTEMS
Postgiro: 466-0722
CVR-nr./VAT-no.: 15 20 03 32
Bank: Danske Bank
Caspar Brands Plads 9, 4220 Korsør
Konto/Acc: 3212 3212298972
Swift: DABADKKK
Internet: www.hbcotes.com
E-mail: [email protected]
Værkstedsvej
DK- Skælskør
Tel +
Fax +
5
4230
45 58 19 63 22
45 58 19 58 44

Page 1
The dehumidifier removes water from an airflow through, and
the removed water is carried away from the dehumidifier with
the regeneration air (henceforward called reg.-air).
Water adsorption and -extraction takes place in an rotor made
of water resistant silica gel.
The air flows in the dehumidifier divides the rotor in two
parts : drying part and reg.-part.
Two separate air flows goes through the rotor as this:
- the main air (moist air inlet) goes through the drying
part, and leaves the dehumidifier as dry air
- the reg.-air coming from the outside through the internal
hose to the reg.-air fan, goes through the electric PTC-
heater and will be heated to 130C (at 20C inlet).
Going through the reg.- part this energy will be used for
evaporation of the adsorbed water. The water vapours and
the reg.- air now leaves the dehumidifier through the reg.
- air outlet (see page 2, fig. 2).
The two air flows are fixed and the rotor turns - this gives
an automatic process of simultaneous water adsorption and wa-
ter extraction.
The inlet conditions of the air to be dried, determines how
much water the dehumidifier will remove.
On page 8 the capacity diagram shows how much water will be
removed per kg air going through.
(shown in the diagram R617)
- inlet air conditions 20C, 60 %RH, gives water content 8,7
g/kg
- the diagram shows then dry air condition of X= 3,9 g/kg
- removed per kg air is then: 8,7 - 3,9 = 4,8 g/kg
Dry air flow is nominal 100 m3/h = (x 1,2) = 120 kg/h
Capacity, removed water per hour = 120 x 5,0 = 600 g/h
= 14,4 kg/24h
- at 230V.
The temperature of the dry air is higher than for the inlet
air. This is caused by the evaporation heat release and heat
gain from the rotor. The temperature is shown to be 42C.
1. PRINCIPLE OF OPERATION.
CAPACITY DIAGRAM R617.
Example:
Capacity of CR100 at this condition:

Page 3
Dehumidifiers in the CR range is used for dehumidification
of ambient air at normal atmospheric pressure. This can be
an installation for moisture control in an unheated store
room, in a water work building, production room for hygro-
scopic materials... - with the dehumidifier in a separate
installation.
The dehumidifier also can be used as a part of a bigger air
treatment system. Here the dehumidifier often will be placed
in a by-pass to the main system.
In this case the pressure in the main system will influence
the dehumidifier - and your supplier must be contacted, as
this can influence the capacity of the dehumidifier.
Normally the dehumidifier will be placed on the floor, on
a table or in a wall bracket (option). It should always be
placed horizontal, resting on the four off rubber supports.
The air to the dehumidifier should be free from solvents or
other explosive components, and should be free from pollu-
tion from solid particles.
- max. humidity ...................... 100 %RH
- max. temperature ................... 35C
- max./min. pressure ................. ambient +/- 300Pa
2. APPLICATIONS.
For air to the dehumidifier the following limit values
must be respected :
The CR range is for indoor, stationary installations.
Should not be placed in rooms with possibility for free wa-
ter on the cabinet.

Page 5
Dry air, free blowing ........ : 140 m3/h
Dry air, nominal .............. : 100 m3/h
Reg.-air, nominal ............. : 35 m3/h
External pressure, dry air .... : 110 Pa
External pressure, reg.-air ... : 50 Pa
Capacity at 20C, 60 %RH ....... : 14,5 kg/24h
see capacity diagram, page 8
Power consumption, PTC heater : 1500 W (installed)
Power consumption, PTC heater : 945 W (230V)
see section "Power consumption
and air flows", page 13.
Electric heater E2 ............ : 10 W, 230V
Process air fan ............... : 40 W, 230V
Reg.-air fan .................. : 18 W, 230V
Gear motor .................... : 5 W, 230V
Power consumption, nominal .... : 1,0 W
Voltage ....................... : 220-230V
External fuses ................ : 10 A
Rotor ......................... : Silica gel, Ø220/50
Rotations of rotor ............ : 14 rph
Gear (for rotor, make Saia) ... : J1M
Drive belt .................... : Ø6/805
Pulley ........................ : SPZ 63-1
L x W x H ..................... : 370 x 280 x 520 mm
Weight ........................ : 20 kg
4. TECHNICAL DATA, SPECIFICATIONS CR100.
FURTHER SPECIFICATIONS:
DIMENSIONS:

Page 7
(ref. to drawing R353)
1 Terminals
2 1 Am.meter, 10A
3 1 Selector switch, man.,0, aut.
4 1 Hour counter
5 1 Reg.-air fan
6 1 Process air fan
7 1 Motor for gear
8 1 Gear, Saia J1M
9 1 PTC heater
10 1 Rotor, SG 220/50, Cotes
11 1 Pulley, SPZ 63-1
12 1 Drive belt, Ø6/805
17 1 Flexible hose, Ø63/
18 1 Flexible hose, Ø80/
19 1 Departing plate, bottom
20 1 Departing plate, top
21 2 Shaft, Ø12/54 (for departing plates)
23 2 Roller for rotor
28 1 Cabinet
29 1 Front cover, (removable)
30 1 Top cover (removable)
33 1 Filter for reg.-air inlet
35 1 Filter for process air inlet
40 1 Inlet & outlet reg.-air, Ø80
42 1 Outlet dry air, Ø100
5. COMPONENTS DIAGRAM, CR100.
POS PCS. DESCRIPTION.

Page 12
Refers to electric diagrams:
R1558 .. : Power and supply circuit
R1998 .. : Wiring
R1057 .. : Power line filter
S1 110215: Selector switch, Manual, 0, Automatic.
Sälzer M220-61025-019M. 20A.
K1 111833: Relay, Finder 60.13, 11P, 230V/50, 10A AC1
M3 110400: Motor for gear, 230V/50, Saia UFR40.230,
110430 Capacitor 0,22 MYF
110410 Gear, Saia J1M
M1 111700: Main air fan, 230V, 40W, Østberg RFE140L
111622 Capacitor 4 MYF
M2 111702: Reg.-air fan, 230V, 41W, EBM G2E108-AA01-01, 75C
111620: Capacitor 1,5 MF
E1 111457: Electric heater, 220-240V, 1500W. - PTC-type.
HR15-15/22 IS
E2 111460: Electric heater, 230V, 10W
D1 111850: Relay on delay (gearmotor and reg.air fan)
set for 1 min., Saia KOL312H7MRVPNOO
P2 110001: Amp. meter, 230V, 5/25A, Deif EQ48,
P1 112003: Hour counter, 230V/50. Saia 230V/50, 48x48
The PTC type electric heater is only functioning when air
flows through. This is the reason why no thermostats or
thermostatic switch is installed, as the function of these
components will be regulation of the energy for the electric
heater.
The dehumidifier is prepared for external regulation by a
humidistat. Therefore terminals for this connection is pla-
ced into the connection box placed on the front plate of
the dehumidifier, next to the dry air outlet. The terminals
is 6 & 7. In the connection box the terminals for power-
connection is placed too (L1,N,PE).
The terminals 6 & 7 are shunted at delivery. This shunt is
to be removed and the terminals for the humidistat connec-
ted.
At operating with connected humidistat, the selector switch
should be in position "automatic".
The humidistat should be approved for 3A.
7.4 ELECTRIC COMPONENTS, CR100.
THE INSTALLED ELECTRIC HEATER :
WARNING : DO NOT TOUCH THE ELECTRIC HEATER WHEN SWITCHED
ON, AS IT IS AN UNINSULATED LIVE WIRE.
7.5 REGULATION BY HUMIDISTAT.

Page 13
The dehumidifier CR100 is connected 230V, 1N+PE. The dehumi-
difier is supplied with a 2m cable for the power supply.
Power consumption is 1,0KW, external fuses 10A.
This cable is connected to the internal terminals placed in
the compartment under the top cover.
In this compartment also the Amp. meter, hour counter, selec-
tor switch and the power line filter are placed.
Connection of humidistat, see 7.5, above.
The electric heater is 230V, 1500W and the external instal-
lation should be made for this.
The energy consumption of the PTC-heater is depending of the
air passing through.
At the nominal reg.- air flow of 35 m3/h the energy consump-
tion of the heater is 945W, (= indication of 4,1A on the
Amp. meter). The airflow and the energy consumption is regula-
ted on the damper delivered in our standard reg.- duct sy-
stem (option).
NOTICE: the energy consumption of the electric heater in the
first seconds is up to 15A.
The dehumidifier should be installed indoors, placed on a
wall bracket or some other horizontal basis. It should be
placed on the four off rubber supports underneath the ca-
binet.
8.1 The main air to be dried is normally taken from the
room, and through the main air filter in the back pla-
te.
As standard the dehumidifier is delivered with filter /
filter frame, but optional plate with Ø100 connection
for inlet air can be supplied.
Reg.-air inlet should be fitted with duct Ø80, and the
build-in filter.
Reg.-air outlet should be fitted with duct Ø80, instal-
led draining away from the dehumidifier to allow the
condensed water to run free + damper Ø80.
If this is not possible, a hole Ø4 mm should be drilled
underneath at the lowest part of the duct.
Dry air outlet can be connected Ø100mm ducts.
In general ducts of the same size as placed on the dehumidi-
fier should be used - or bigger.
7.6 ELECTRIC CONNECTION.
SUBJECT : POWER CONSUMPTION & AIRFLOWS.
FREQUENT START/STOP ON THE SELECTOR SWITCH SHOULD BE
AVOIDED, AS IT CAN DAMAGE THE CONTACT ELEMENT, OR THE
CONNECTED HUMIDISTAT.
8.
CONNECTION OF DUCTS :
INSTALLATION.

Page 14
If the dehumidifier should be connected to another air
treatment system, the air pressure of this system will
influence the dehumidifier. You should then contact
your supplier before installation for advice.
Before starting-up the dehumidifier, check that all
electric connections are made correctly.
If this is OK, just connect the plug into the electric
switch, and switch on.
The selector switch has three positions (S1) :
- manual = continuous operation
- 0 = switched off
- automatic = operation with connected humidistat
At starting up, select the position for the chosen
operation mode.
Especially at "automatic":
If it does not start-up, it can be caused by the humidi-
stat. If the actual %RH is lower than wanted, the humi-
distat is broken.
This can be checked like this:
- adjust the humidistat to 20 %RH, and the dehumidifier
should then be operating
- adjust the humidistat to 90 %RH, and the dehumidifier
should stop operating.
The relay D1 (on delay, 1 min.) controls the gear motor
and the reg.air fan. This means that they will continue
operating even that the dehumidifier is stopped by a
connected humidistat or on the selector switch.
This continued operation cools the electric heater and
at the same time the evaporated water vapours from the
warm rotor material in the reg.section is ventilated out
of the dehumidifier.
It is important that the dehumidifier is stopped as de-
scribed above and this delay for gear motor and reg.air
fan is achieved. If not the moisture might cause short
circuit in the PTC heater at restart.
Air flows should be adjusted.
The dry air flow should be adjusted for the nominal 100
m3/h for obtaining data from the capacity diagram.
If the installation is normal dehumidification of a
room for 50 - 100 %RF it is acceptable that the dehumi-
fier is free blowing (without adjustment).
If lower dew points are wanted, you need to adjust the
dry air flow.
NB :
9.1 ELECTRIC.
9.2 STOP OF DEHUMIDIFIER.
9.3 AIR FLOWS.
9. START-UP PROCEDURE.

Page 15
- the dry air flow can be adjusted when a damper Ø100 is
installed in the dry air duct. If only a short duct
is installed, the airflow should be reduced on the
damper to obtain the nominal 100 m3/h.
- the reg.- air flow can be adjusted on the damper in
the reg.-air outlet (option). Start-up with the damper
in the closed position, opening until the Amp. meter
indicates 4,1A (at 230V). Check the value again after
15 min. of operation (one more adjustment might be
necessary).
Reg.-air flow always has to be controlled. Check the
reg.-duct for allowing free blowing of the reg.-air.
Check that the reg.-air duct is installed draining from
the dehumidifier.
With the electrical settings and air flows adjusted, the
dehumidifier will then operate automatically by means of
the internal control- and safety functions - controlled
by an external humidistat.
Dehumidifier CR100 only needs a minimum of maintenance.
All components are service free, which means no lubrication
or adjustment.
Only three things should be checked under normal operati-
on:
- air filters should be replaced at least every 2. month
- the rotation of the rotor should be checked once a
month.
- the power consumption of the electric heater should be
checked often (reading 4,1A on the Amp. meter).
If the rotor rotates during operation, and the energy con-
sumption of the electric heater shows app. 4,1A, you ca be
almost sure that the dehumidifier is operating at an opti-
mum.
We nevertheless recommend some periodic verification of
the entire dehumidifier, to see if all internal functions
are ok and checking of gaskets and moving parts for wear
and tear.
This will ensure that the capacity is on its maximum, and
thus wont waste any energy.
11.1 If the dehumidifier does not start when electric con-
nected, control the external fuse.
HOW TO ADJUST THE AIRFLOWS:
IMPORTANT :
10. MAINTENANCE.
11. TROUBLE SHOOTING.

Page16
11.2 If the dehumidifier is not operating it is probably the
external humidistat which has broken.
This is a normal situation when the desired humidity is
obtained.
To check : adjust the humidistat for 20 %RH, and the
dehumidifier should start operating. Adjust again for
the desired humidity.
11.3 If the desired humidity is not obtained, the problem
can be the dehumidifier - or the other parts in the
total installation ( room tightness, humidistat...).
To verify this, check:
- rotation of rotor ?
- the dry air should be 15-20C warmer than the inlet
main air. If it is cold it could indicate that the
rotor is not turning caused by broken drive belt or
the motor has stopped.
- by hand feel the temperature of the reg. outlet air,
and feel the airflow. The temperature is depending on
the inlet conditions, but should be 40-60C.
The air velocity should be app. 1,9 m/s - Amp. meter
should show 4,1A.
If it is cold and Amp. meter shows 0A, the electric
heater might be replaced.
Before opening the dehumidifier, make sure that the
electric power is switched off on the main switch.
When removing the top cover, Amp. meter, hour counter,
selector switch, power line filter and internal ter-
minals are accessible.
When removing the front cover, rotor, gear motor, drive-
belt and fans are accessible.
The fan is placed in the left side of the cabinet.
To be unscrewed from the outside through the process-
air inlet opening ( 4 screws).
Electrical disconnection on the terminals placed on
the bottom plate.
The fan is placed in the right side of the cabinet.
To be unscrewed from the outside (4 pcs Unbrako).
Electrical disconnection on the terminals placed on
the bottom plate.
The flexible hose (Ø63) connecting the inlet air box
to the heat-box should be removed.
Unscrew the two screws on top of the shafts for depar-
ting plates.
Disconnect the wiring for the PTC heater, and the
top departing plate inclusive heat-box and PTC-heater
can be removed.
Now the rotor and drive belt is free for removing too.
12. SERVICE/REPAIR.
12.1 SAFETY INSTRUCTION.
12.2 ACCESS FOR SERVICE/REPAIR:
12.3 REPLACING OF PROCESS AIR FAN.
12.4 REPLACING OF REG.-AIR FAN.
12.5 REPLACING OF ROTOR, DRIVE BELT, PTC-HEATER.

Page 17
Measuring of the sound data is according to EN292-2, annex
A.
" If the working place is not specified, or cannot be spe-
cified, the sound level should be measured in a distance
of 1m from the surface of the unit, and in a distance of
1,6m from the floor or the frame".
The dehumidifier is during the measuring of the sound level
placed with the top plate 1m over the floor. Ducts for reg.-
air is installed and led out of the room, and 2m dry air
duct Ø100 is connected to the dehumidifier.
The sound level is the measured 1m outside the front of the
cabinet, and 1,6m above the floor.
The Sound level is : 50 dB(A).
13. SOUND DATA.
MANUFACTURED BY :
HB COTES A/S
Værkstedsvej 5
DK-4230 Skælskør.
Phone [phone]
Fax [phone]
www.hbcotes.com
[email protected]