Wiring Instructions; General Information; General Schematic Of The Hrg Units - Auerhaan HRglobal Series Maintenance And Installation Instructions

3. WIRING INSTRUCTIONS

3.1 General information

3.1.1 General schematic of the HRg units

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1. Main switch for power supply fans and control
2. Main switch for power supply to pre (KWin) and/or post (KWout) heating coils (options)
3. Centralized wiring box of the CB4 TAC5 (DG or DT) circuit (factory pre-wired)
4. Supply fan(s)
5. Exhaust fan(s)
6. Post-heating water or electrical coil (NV or KWout option)
7. Motorized damper at fresh air inlet (CT option)
8. F7 class filter at fresh air inlet
9. Pre-heating electrical antifreeze coil (KWin option)
10. Drain pan and drain
11. Modulating 100% by-pass
12. Air/Air heat exchanger
13. M5 filter on exhaust air or F7 in option
14. Motorized damper at exhaust air inlet (CT option)
Only electrical connections made by the installer are in 1/2/3.
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