Tiba Prima cool cr series User manual

Description Page

Table of Contents

= Installation & Maintenance Manual

= Conversion Table

= Guide Specifications

= Features & Benefits

= Technical Data

= Dimensional Drawings

= Wiring Diagrams

= Electric Heater Arrangement

= Quick Selection Table

= Cooling Capacity Tables 15

Guide Specifications

General

The CR series ducted concealed chilled water fan coil units are available in 10 models divided to two main

ranges, the L range (Low static), the H range (High static). The L range have an air flow range from 500

to 2000 cubic meters per hour with a cooling capacity range from 3 kW up to 12 kW .The H range have

an air flow range from 2000 to 5000 cubic meters per hour with a cooling capacity range from 12 kW up

to 30 kW. The CR series covers a wide range of external static pressures from 10 Pa up to 150 Pa. The units

offer excellent features and benefits in terms of the following: compact size, low initial cost, super low noise

operation, ease of installation and ease of maintenance making them ideal for cooling or heating a wide

range of applications including apartments, banks, hotels, shopping malls, show rooms, air ports, stores,

museums, high rise buildings, schools, office buildings and many other applications.

Casing

The CR casing provides excellent inherent strength, stability and air tightness. The casing is fabricated from

heavy gauge hot dipped galvanized steel sheet metal with 1 and 1.5 mm thickness (Electrostatic painted

casing is available upon request). The casing is insulated with 5 mm thick closed cell insulation (other

thickness are available upon request) forming a rigid enclosure with high acoustic attenuation, high thermal

insulation and superior air tightness. Sufficient strengthening forms and folds are incorporated to give a

robust vibration free assembly. All units are supplied with a collar for direct connection with the supply

and return air duct as well as a return plenum section, insulated with sound absorption acoustic lining.

Coil/Drain pan

Chilled water coils are constructed from 3/8 inch copper tubes, mechanically bonded to high efficiency

corrugated aluminum fins. Standard coils are three rows deep with an option of two or four rows depending

on the required specifications. All coils are factory tested at 30-atmosphere pressure according to the

international standards and are sealed with a quality pass label and a traceable serial number before being

installed in the units. Optional fin materials are available upon special request, including golden plated,

vinyl-coated aluminum and copper. The coil matrix is held firmly within a heavy gauge galvanized framework.

The coil assembly complete with brass distributors and a manual air vent is located above a full width

condensate tray which covers both the entire coil face area and the coil headers, return bends, distributors

and control valves. The condensate tray (drain pan) is constructed of corrosion resistant electrostatic painted

galvanized steel sheet metal (other construction materials are available upon special request, including

aluminum and stainless steel) and externally insulated by 5mm thick closed cell insulation (other thickness

are available upon request). The drain pan is internally sloped for a smooth, clogging free drainage mechanism.

The drain outlet is threaded and plugged with a plastic cap for simple on-site connection. Water connections

are standardized on the right hand side of the coil when facing the airflow with male threaded header of ¾

inch for the L and M ranges and 1 inch for the H range. The coil can be supplied on either sides according

to the customer requirements and can be turned on site for more flexibility.

Fan/Motor

Direct drive fans are centrifugal, forward curved with double-width wheels. The fan housing is constructed

from heavy gauge galvanized steel. The fan wheel is constructed from High tensile aluminum or heavy

gauge galvanized steel. The fan wheel and housing are designed to minimize air borne noise levels. All

fan wheels are individually tested and precision balanced, statically and dynamically and keyed to the shaft.

Fan motors are single or double shaft, class B or F insulation, resilient-mounted, three or five speeds tapped

wound with thermal overload protection and a permanent split type capacitor. Three speeds are pre-wired

as standard. All motors have long life self lubricated bearings of the sleeve or ball bearing types. All wiring

is made at 220V, single phase and 50HZ. Motors are suitable for 50Hz, single-phase with 220/240, operating

voltages. 60Hz, single-phase motors are also available as an option with 208/220V operating voltages.

Filter

Two filter options are available for the CR series including washable synthetic filters and aluminum filters.

The first option is filter cells with filter media composed of polyester A40. The filter frame is constructed

from corrosion resistant galvanized steel sheets. The synthetic filter is flame resistant according to F1-Din

53438 classification. The second option is regenerable filter cells with multi layer metallic media composed

of aluminum. The filter frame is constructed from corrosion resistant galvanized steel sheets. The average

gravimetric efficiency is 75% with EN 779 G2 classification. The aluminum filter is fireproof. Either option

comes with 22 mm filter thickness as standard. Other media thickness is available upon request. The filter

section is designed to easily withdraw the filter panels for maintenance or renewal when required.

CR Model Designation

CR 040 L 3 R E

Options & Accessories