HIMA K9202 Cabinet Fan Drawer (2 Axial Fans)

Overview

The HIMA K9202 cabinet fan drawer provides the ventilation of HIMA safety system cabinets. Per the HIMA datasheet, the K 9202 is a forced-draft fan drawer with two axial fans and fan run monitoring, installed below the top plate cutout of the cabinet. The fan drawer delivers an air flow rate of 200 m³ per hour and is designed for a life of 70,000 hours at 40 °C.

The K 9202 is the standard ventilation element of HIMA fail-safe system cabinets, keeping the electronics inside the cabinet within their operating temperature range. The unit is supplied with the air discharge opening grill and fixing accessories for the top plate cutout, already mounted in the standard cabinet.

Engineering & Design

Forced-draft ventilation draws air through the cabinet and discharges it through the top plate cutout, so that the heat from the power supplies and modules is carried away continuously. The two axial fans are monitored: if a fan fault occurs, defined as a speed below 75 to 85 % of the rated speed, the monitoring electronics signal the fault.

Operating and error states are displayed with two LEDs on the unit, labelled FAIL and 24 V, and are also available as contact signals on connector pins 4-5 and 5-6 of the fan drawer. The housing is made of anodised aluminium, and the unit operates from 24 V DC with a current consumption of 500 mA. The weight is 1.2 kg per the datasheet.

Key Features

• HIMA K9202 forced-draft fan drawer with two axial fans and fan run monitoring
• Air flow rate: 200 m³ per hour
• Life: 70,000 hours at 40 °C
• Operating data: 24 V DC / 500 mA
• LED FAIL and LED 24 V indication plus contact signals (pins 4-5, 5-6)
• Material: anodised aluminium; weight 1.2 kg
• Installed below the top plate cutout of the cabinet

Applications

• Ventilation of HIMA fail-safe system cabinets
• Cooling of 19 inch subrack enclosures in control rooms
• Replacement HIMA K9202 fan drawer for cabinet maintenance
• General cabinet ventilation with the HIMA K9202 in safety-instrumented installations

Specifications

Compatibility & Integration

The HIMA K9202 is installed below the top plate cutout of the HIMA standard cabinet, where it replaces or maintains the forced-draft ventilation of the cabinet. The fan run monitoring signal can be wired into the cabinet monitoring logic, so that a fan fault or a missing supply voltage is reported to the plant maintenance system.

When a fan drawer is replaced, the electrical connection is made via the connector pins of the unit, and the monitoring contact behaviour can be verified with the two front LEDs after power-up.

Confirming a K 9202 Replacement

Fan drawers are wear parts, and replacements are usually ordered after a fan fault alarm or as preventive exchange once the fans approach their rated life. To confirm the replacement:

• Check the module number K 9202 on the installed fan drawer label, and note any version marking.
• Confirm the cabinet type and the top plate cutout. The K 9202 is designed for mounting below the cutout of the HIMA standard cabinet.
• Check that the supply is 24 V DC and that the fan monitoring contacts on pins 4-5 and 5-6 are wired into your cabinet alarm circuit.

Replacement Procedure

Fan drawer replacement is normally a straightforward maintenance task, but the cabinet contains safety system electronics. The work should be done under a permit, and the time without forced ventilation should be kept short. Disconnect the 24 V DC supply to the drawer, unplug the connector and remove the fixings at the top plate. Fit the new drawer in the same orientation, so that the airflow direction matches the cabinet design. Reconnect the supply and the monitoring contacts, then check that both fans run and that the 24 V LED is lit and the FAIL LED is off. Confirm that the fan fault alarm clears in the control system.

Maintenance Recommendations

• Check the fan drawer LEDs and listen for bearing noise during routine cabinet inspections.
• Clean or replace cabinet air filters regularly, as blocked filters reduce the air flow and raise the internal temperature.
• Plan preventive replacement based on the running hours and the actual cabinet temperature, since fan life falls at higher temperatures.
• Never bypass the fan run monitoring signal; it is the early warning for rising temperatures in the cabinet.

Operation in Oman and GCC Control Rooms

Safety system cabinets in the region are often installed in equipment rooms and remote instrument buildings, where HVAC failures and dust can quickly raise temperatures. Healthy fan drawers help keep the HIMA electronics within their limits. Holding a spare HIMA K9202 on site allows a failed unit to be exchanged immediately.

Sourcing from Seven Star LLC

Seven Star LLC supplies HIMA cabinet components and module spares. Send the module number and quantity, and we will confirm availability and delivery to your site.

Ordering Information

To order the HIMA K9202 cabinet fan drawer from Seven Star LLC, quote the module number and the quantity required. We confirm availability and delivery to your site in Oman or anywhere in the GCC, and we verify the unit against your cabinet type before dispatch.

Why Seven Star LLC

Seven Star LLC supplies HIMA fail-safe system spares to industrial customers across Oman and the wider GCC region. Every HIMA K9202 cabinet fan drawer we supply is verified against your cabinet before dispatch, and our team confirms the unit matches your installation before you order.

FAQ

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