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| EN
EIOM v2018.04
Figure 5.1.5 – Palate heat exchanger pressure switch and tubes mounting principal scheme:
GP3 – Heat exchanger pressure switch (relay) with „+“ and „-“ pressure tubes; ST3 – By-pass damper aqtuator; (1) – Supply air flow; (2) –
Fresh air flow; (3) – Exhaust air flow; (4) – Extract air flow.
5.2 ROTARY HEAT EXCHANGER
Rotary heat exchangers are regenerators with rotating heat accumulators. The heat-dissipating and heat-absorbing air flows heat or cool the
rotating, air-permeable storage accumulator. Depending on the air conditions and the surface of the accumulator material, moisture may also be
transferred in the process. Self-cleaning effect due counter-flow supply. Double deck arrangement.
Rotary heat exchanger section divided in separate parts from size 12-KR due transportation reasons. Refer to separate assembly manual for
assembly of such section.
Electrical connection:
• Electrical connection may only be undertaken by technically trained personnel.
• Rotors can be equipped with 1-phase motor (w/o control), 3-phase motor (w/o control) or stepping motor with controller.
• Do not route the wires through the heat exchanger’s casing. Otherwise it will be impossible to pull out heat exchanger in case the maintenance
needed without help of electrician.
Important:
Some rotary heat exchangers are delivered with rubber transportation locks 6 which prevent rotor wheel from deformation. These rotary heat
exchangers are marked with special warning label on the section. Remove rubber transportation locks before connecting rotary heat exchanger
section to other section of the AHU otherwise the unit will not work properly.
Figure 5.2.1 - Rotary heat exchanger section.
1 – Panel blocks, 2 – removable panel, 3 – fastening elements, 4 – casing, 5 – rotary heat exchanger, 6 - rubber transportation locks.
5.2.1 1 ~ PHASE ROTOR MOTOR (W/O CONTROL)
Capacitor 1,5uF is used for motor connection. Capacitor is supplied with the motor as the device is delivered without any control system.
Connection diagram and rotation direction of the single-phase induction motor:
Figure 5.2.1.1 – Single-phase rotor motor connection - clockwise
(CW) rotation:
Figure 5.2.1.2 – Single-phase rotor motor connection - counterclock
wise (CCW) rotation:
(1) – Red (Main) wire; (2) - White wire; (3) – Black (blue) wire; (4) – Capacitor 1,5uF.
