210.100-IOM (JUL 2021)
Page 3
AcuAir Hygienic Air Units
Installation - Operation - Maintenance
Table of Contents
General information
Safety ................................................................................5
Warranty ...........................................................................5
Pre-installation requirements ............................................7
Training and safety considerations ............................... 7
Preliminary site layout considerations .......................... 7
Preliminary eld piping design considerations .............. 7
Installation
Receiving and inspection................................................... 9
Storage .............................................................................9
Indoor storage ..............................................................9
Outdoor storage ...........................................................9
Long-term storage .......................................................9
Lifting and handling .................................................... 10
Support structure information ......................................... 11
Section reconnect ship loose items ................................14
Installation tools .............................................................. 14
Assembling roof curb (optional) ................................. 14
Installing roof curb .....................................................14
General split unit reassembly .......................................... 14
Removable lifting lugs .....................................................14
Electrical wiring and piping ............................................. 14
Performance Grade connections .....................................15
Reassembling split unit, Performance Series only ........... 15
Installing and sealing the reconnection attachment ........16
Insulating the base reconnect seam of an AcuAir
Performance Series unit ........................................... 17
Sealing the AcuAir Performance Series roof ................... 19
Food Grade connections .................................................20
Installing the reconnect ...................................................20
Applying the AcuAir Food Grade roof reconnect nish ... 21
Insulating the base reconnect seam of an AcuAir Food
Grade Series unit .....................................................23
Foam kit 15 use guidelines for
AcuAir unit base reconnect insulation ...................... 24
Applying foam kit 15 ..................................................24
Attaching the AcuAir fresh air intake plenum .................. 25
Condensate drain trap sizing ........................................... 28
Drain pan construction ....................................................28
Field piping requirements ................................................ 28
Duct connections ............................................................ 29
Connecting the weather hood directly to the AcuAir
fresh air opening ...................................................... 30
Field penetrations for piping and electrical connections .30
Tools required ............................................................30
Filter latches ................................................................... 31
HEPA lter application ..................................................... 34
Non-HEPA lters in HEPA frames ....................................34
Installing a 4 in. pleated panel (pre)lters ....................... 35
Installing spring latches ............................................. 35
Installing latches ........................................................ 35
Installing a rigid DH double-headered lter .....................35
HEPA lters ..................................................................... 37
Operation
Start-up ..........................................................................39
Initial start-up .................................................................39
Inspection ................................................................... 39
Blower, motor, drives ................................................. 39
New belt run-in ..............................................................39
Filters .........................................................................39
Cooling coils ............................................................... 39
Gas heat start-up .......................................................40
Gas heat shutdown .....................................................40
24 hr run-in ................................................................ 40
Start-up after prolonged shutdown ................................... 40
Maintenance
Daily operation and routine maintenance ........................ 41
Maintaining the coils ....................................................... 41
Maintaining the dampers .................................................41
General maintenance .................................................. 41
Periodic inspections ...................................................41
Inspection checklist .................................................... 41
Maintaining the filters .....................................................42
Finish and sealing ....................................................... 42
Electrical conduit sealing requirement ............................ 42
Sources of water or ice .............................................. 42
Remedy ......................................................................42
Calibrating the temperature sensors ...............................43
Ice bath ..................................................................... 43
Infrared temperature scanner .................................... 43
Unit cleaning and sanitation ............................................ 43
White rust and wet storage stain of galvanized steel ...... 43
Addressing a light coating of white rust
also known as wet storage stain ................................ 43
Cleaning white rust .................................................... 43
Lubricating the fan bearing .............................................44
Lubricant for fan bearings...........................................44
Correct interval and quantity ...................................... 44
Fan segment-fan motor .................................................. 44
Mounting hardware and adjustable motor base .........45
Motor condition (visual) ............................................. 45
Electrical checks ......................................................... 45
Lubrication .................................................................45
Inspecting V-belts and sheaves .......................................46
Inspect sheave alignment ........................................... 46
Alignment using a straightedge (preferred) ................ 46
Alignment using a string ............................................. 46
Replacing belts ...........................................................47
Tensioning V-belts and sheaves ...................................... 47
Simple tensioning procedure ...................................... 48
Operating and maintenance instructions for piezometer 48
Operating the piezometer ..........................................48
Maintaining the piezometer ........................................ 48
Monthly service ............................................................... 48
Blowers, motors, and drives .......................................48
Filters .........................................................................49
Unit exterior ............................................................... 49
Maintenance intervals .....................................................49
Spare parts ......................................................................50
Troubleshooting .............................................................. 51
AcuAir factory start-up assistance .................................. 52
AcuAir air handler prestart-up checklist .........................53
Prestart-up check (for site records) ................................ 53
General unit inspection ...............................................53
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