Ventmatika CW Series User manual

CIRCULAR DUCT WATER HEATERS
CW series

CIRCULAR DUCT WATER HEATERS
CWC/CWH
1
Description ..................................................................................................................2
Model marking.............................................................................................................2
Operating data.............................................................................................................2
Installation CWH..........................................................................................................3
Installation CWC ..........................................................................................................3
Cleaning ......................................................................................................................3
Dimensions ..................................................................................................................3
Product warranty.........................................................................................................5
Table of contents

CIRCULAR DUCT WATER HEATERS
CWC/CWH
2
The duct water heaters CWC/CWH with circular duct connections are designed for
heating/cooling the ventilation air in a ventilation system. The CWH/CWC can also be used for heating
or cooling individual rooms or zones. For controlling the room or supply air temperature, the duct
heaters can be supplemented with regulators, sensors, actuators, valves and anti-freeze protection.
➢9 standard sizes (9 heaters and 9 coolers);
➢Water coils with 2 or 3 tube rows (cooler with 3 rows only);
➢Casing of Aluzinc coated sheet steel, AZ 150;
➢Openable cover for inspection and cleaning;
➢Circular duct connections with rubber seals;
➢Air tightness class D to EN 15727;
➢Coils are used with water (0/+110°C), as well as glycol (-40/110°C);
➢
➢
CWH 125-2
1 2 3
1- Type
CWH –Circular water heater
CWC –Circular water cooler
2 –Duct diameter (mm)
100 –100 mm 315 –315 mm
125 –125 mm 355 –355 mm
160 –160 mm 400 –400 mm
200 –200 mm 500 –500 mm
250 –250 mm
3 –Number of tube rows
2–2 rows 3–3 rows
➢Operating temperature range: 0/+110°C (water); -40/110°C (glycol)
➢Max. operating pressure: 1,6 MPa (16 bar)
➢The coils are tested for leakage (Bubble test described in the EN 1799)
Description
Operating data: water coil
Model marking

CIRCULAR DUCT WATER HEATERS
CWC/CWH
3
The duct water heater CWH can be installed in a horizontal or vertical duct, with the air flow in
either direction. The heater should not be fitted too close to a fan outlet or a bend in the ducting
because then there is a risk that the air flow through the heat exchanger is uneven which might result
in lower efficiency. The heater is normally fitted after the fan. The heater is controlled by external
regulators, sensors, valves and actuators, which must be ordered separately.
The duct water cooler CWC can be installed in a horizontal duct only, with the air flow in either
direction. The duct water cooler is partly insulated. A drain pipe is required to drain off any condensed
water with drain connection of G½. The heater is controlled by external regulators, sensors, valves
and actuators, which must be ordered separately.
The heat exchanger must be cleaned regularly in order to retain the best performance from the
heater/cooler. The cleaning interval depends on the air cleanliness and on the correct maintenance
of the whole system.
The heat exchanger is easily accessible for cleaning when the lid of the heater/cooler is
removed. Whole heater/cooler can be cleaned by compressed air, water or steam.
k
G½” drain is used in water coolers only.
Dimensions
Installation CWH
Installation CWC
Cleaning

CIRCULAR DUCT WATER HEATERS
CWC/CWH
4
Heater type
Ø
D(mm)
A(mm)
B(mm)
C(mm)
E(mm)
F(mm)
G(mm)
Ø
d(mm)
CWH 100-2(3)
100
259
315
417
277
70
145
10
CWC 100-3
100
259
330
417
277
70
145
10
CWH 125-2(3)
125
259
315
397
277
60
145
10
CWC 125-3
125
259
330
397
277
60
145
10
CWH 160-2(3)
160
259
315
397
277
60
145
10
CWC 160-3
160
259
330
397
277
60
145
10
CWH 200-2(3)
200
360
400
397
277
60
220
22
CWC 200-3
200
360
415
397
277
60
220
22
CWH 250-2(3)
250
360
400
417
277
70
220
22
CWC 250-3
250
360
415
417
277
70
220
22
CWH 315-2(3)
315
509
565
417
277
70
375
22
CWC 315-3
315
509
580
417
277
70
375
22
CWH 355-2(3)
355
509
565
437
277
80
375
22
CWC 355-3
355
509
580
437
277
80
375
22
CWH 400-2(3)
400
509
565
517
277
120
375
22
CWC 400-3
400
509
580
517
277
120
375
22
CWH 500-2(3)
500
659
675
467
277
95
477
22
CWC 500-3
500
659
690
467
277
95
477
22
* - coolers (CWC) are with 3 row coil only.

CIRCULAR DUCT WATER HEATERS
CWC/CWH
5
Fill in this warranty information form and keep this page for future reference or when
warranty service may be required.
Model name
CWC/CWH .....-...
Warranty period
Date of invoice
Customer info
Name (company)
Address
Contact info
Retailer info
Name (company)
Address
Contact info
Fault description
The product warranty covers product malfunctions, under normal operating conditions for 24
months from the date of manufacturer’s invoice. Please note that the product warranty terms may
vary depending on purchase or installation contracts.
During the product warranty period, warranty service (free of charge) is provided for product
malfunctions caused under normal operating conditions. For warranty service, contact an official
“Ventmatika UAB“dealer. Any manipulation of the appliance by personnel not appointed by
“Ventmatika UAB“will cancel the guarantee. “Ventmatika UAB“ reserves the right to modify the
product without prior notice.
Product warranty

CIRCULAR DUCT WATER HEATERS
CWC/CWH
6

CIRCULAR DUCT WATER HEATERS
CWC/CWH
7
Manufacturer:
VENTMATIKA UAB
Metalistu str. 2A -1, 78107 Šiauliai
Lithuania