CONTENTS
FLEXYII_WSHP-IOM-0909-E Page 2
COMMISSIONING SHEET....................................................................................................................................6
INSTALLATION
Transport - Handling.......................................................................................................................................10
Dimensions and weights.................................................................................................................................12
Lifting the units ...............................................................................................................................................14
Preliminary checks .........................................................................................................................................15
Minimum clearance around the unit................................................................................................................16
Duct connections ............................................................................................................................................17
Water connection (water source heat pump)..................................................................................................18
Water loop configuration (water source heat pump) ......................................................................................20
Installation on roof mounting frame ...............................................................................................................22
Curbing and flashing ......................................................................................................................................23
Non-adjustable non-assembled roof curb installation .....................................................................................24
Non-adjustable roof curb - Installation instructions.........................................................................................25
Adjustable roof curb .......................................................................................................................................26
Non-adjustable Non-assembled roof curb .....................................................................................................27
Multidirectional roof curb ...............................................................................................................................28
Return roof curb .............................................................................................................................................29
Return horizontal roof curb .............................................................................................................................30
Transition roof curb.........................................................................................................................................31
Energy Recovery............................................................................................................................................32
Economiser and extraction .............................................................................................................................44
COMMISSIONING
Before connecting the power..........................................................................................................................45
CLIMATIC.......................................................................................................................................................46
Powering the unit............................................................................................................................................46
Run test ..........................................................................................................................................................47
VENTILATION
Belt tension......................................................................................................................................................48
Mounting and adjusting pulleys........................................................................................ ...............................49
Airflow balancing............................................................................................................... ..............................50
Filters...............................................................................................................................................................58
Air sock control...............................................................................................................................................59
UV Light..........................................................................................................................................................60
HEATING OPTIONS
Hot water coils ...............................................................................................................................................61
Electric heater.................................................................................................................................................63
Gas burners....................................................................................................................................................64
Modulating gas burners ..................................................................................................................................75
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