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HE, DE & RE MANUAL 

IOM-26 

11 of 33 

Oct 12 R4

 

 

ASSEMBLY 

 

Warning:

 

Assembly of split units requires bolting together the base frame of adjacent 
sections. This may require personnel to work under the unit during 
assembly.  Injury or death can result from improper support or improper 
loading of the curb.  Additional temporary support shall be provided by the 
installer for the safety of personnel.

 

 
If the unit is split and shipped in sections, the sections must be field assembled. All sections are pre-drilled 
for assembly. The hardware and gaskets are packed in one of the sections. Apply the gasket, align the 
sections.  The base frame must be bolted together first. Access below the unit for bolting of the base frame 
must be provided.  Once the base frame has been tightly fastened, loosely assemble all the bolts and nuts, 
and then tighten. Caulk all split lines.  Install split joint caps. The inlet hood is designed for field installation. 
On outdoor units connect the hood to the support flange and attach with appropriate fasteners. 
 
The gasket material provided for the split is open cell foam.  Open cell foam is light and compresses easily.  
If the unit is mounted on a curb provided by Engineered Air there will also be gasket material for sealing 
the curb.  The gasket material for curbs is closed cell foam.  It is more dense than open cell foam and does 
not compress as easily.   
 
ONLY USE THE OPEN CELL FOAM GASKET PROVIDED FOR SEALING THE SPLIT(S). 
 
Split unit wiring 
 
All split wiring must be completed by an electrician prior to starting the equipment.    A number of different 
methods are used to reconnect the wiring. 
 
Power wire:  this wiring is generally not broken or spliced, and will extend from the device back to the 
contactor or terminal block inside the electrical panel(s).  The wire will be tagged to identify which panel it 
extends to and will be numbered to the corresponding connection. 
 
The location of the equipment split line may result in the wire being disconnected at the device it is feeding.  
The wire bundle will be tagged and identified.  Confirm correct rotation of 3 phase devices after the wiring 
connections has been completed. 
 
Control wire:  this wire is typically broken near the split line, to be reconnected at either a enclosed terminal 
block, junction box or extended to a nearby control panel.  Each wire or wire bundle will be tagged and 
numbered to indicate the location it is sent to. 
 
Sensor wire shield:  The drain wire from the shield must be grounded (at one end only).  A ground 
connection point is available for connection at the point of termination. 
 
All loose wiring must be securely fastened to the equipment casing upon completion. 

 

Содержание ENGINEERED AIR DE Series

Страница 1: ...EAD OFFICE AND FACTORY CANADIAN EASTERN FACTORY 1401 HASTINGS CRES SE CALGARY ALBERTA T2G 4C8 Ph 403 287 2590 Fx 888 364 2727 Parts 32050 W 83 rd STREET DESOTO KANSAS 66018 Ph 913 583 3181 Fx 913 583...

Страница 2: ...T FREEZE PROTECTION 16 ELECTRICAL INSTALLATION 16 Recommended 24V Field Wiring Size 17 DUCT MOUNTED TE 6000 EA3 TEMPERATURE SENSOR 18 COIL CONNECTIONS 18 DRAIN TRAPS 19 FLUSHING AND DEGREASING OF WATE...

Страница 3: ...inning the installation including all safety precautions and warnings FOR YOUR SAFETY If you smell gas 1 Open windows 2 Don t touch electrical switches 3 Extinguish any open flame 4 Immediately call y...

Страница 4: ...S Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Leave the building immediately Immediately call your gas supplier from a phone remote from...

Страница 5: ...warranties express or implied ENGINEERED AIR specifically disclaims any implied warranty of merchantability and or fitness for purpose Under no circumstances shall ENGINEERED AIR be liable to nor be r...

Страница 6: ...be internal damage Remove protective covers and check for internal damage Replace covers if the unit is not being assembled or installed at this time Open access doors and check for internal damage Cl...

Страница 7: ...n of the Canadian Electrical Code Part 1 C S A Standard C22 1 Provincial and Local Codes and in accordance with the local authorities having jurisdiction 3 The installation of this unit shall be in ac...

Страница 8: ...dance with local authorities having jurisdiction or NFPA 54 an accessible approved manual shutoff valve shall be installed within 6 ft 1 8 m of the valve train gas manifold 6 The installation of this...

Страница 9: ...ic unit mounting Consult the Submittal Record for specific unit mounting Engineered Air units are constructed for three types of mounting 1 Base mounting Consult the Submittal Record for type of mount...

Страница 10: ...he gasket material for splits is open cell foam It is less dense than the closed cell foam and compresses easily ONLY USE THE CLOSED CELL FOAM GASKET PROVIDED FOR SEALING THE CURB Curbs may be broken...

Страница 11: ...rial for sealing the curb The gasket material for curbs is closed cell foam It is more dense than open cell foam and does not compress as easily ONLY USE THE OPEN CELL FOAM GASKET PROVIDED FOR SEALING...

Страница 12: ...pply pressure higher than the unit rating plate requires an additional field supplied gas regulator 5 Install an approved appliance shutoff valve on the gas supply in accordance with the requirements...

Страница 13: ...within 20 ft 6 m horizontally of the vertical plane in which combustible gas vapor or dust is present This equipment shall be installed so that in the event the make up air shut down causes a hazard...

Страница 14: ...ion air must be provided in accordance with the information shown on the name plate Recirculation of room air in HE DE RE units may be hazardous in the presence of A Flammable solids liquids and gases...

Страница 15: ...jurisdiction if there is airborne particulate matter that could be detrimental to the operation of the heater If airborne particulate matter could accumulate in the duct system in the re circulating...

Страница 16: ...ally grounded and all wiring must be installed in accordance with the National Electrical Code ANSI NFPA 70 and or the Canadian Electric Code CSA 22 1 and to the approval of the authorities having jur...

Страница 17: ...15 12 AWG Notes 1 The field wiring load depends on the actual load on a particular control circuit the field wiring is connected to Refer to the internal wiring diagram of the unit 2 The table above i...

Страница 18: ...refrigerant coils For proper operation airflow must be counterflow to the flow of the fluid The inlet water connection is normally at the bottom of one header and the outlet water connection at the to...

Страница 19: ...nnected and properly trapped Cooling coil drain pans may have multiple drain connections extending outside the unit casing Multiple drains may be connected to a common drain providing that each drain...

Страница 20: ...contains moving parts that can start unexpectedly Injury or death could occur if instructions are not followed All work should be performed by a qualified technician Always disconnect and lock out pow...

Страница 21: ...is less than 2 and therefore is OK If voltage imbalance is greater than two percent 2 turn off main disconnect and contact the installing electrical contractor to have the voltage condition corrected...

Страница 22: ...re the air volume being delivered matches the unit rating plate Failure to perform a proper air balance can cause injury or death damage to the equipment property damage system operational problems or...

Страница 23: ...e rate is less than noted in the table remove the 6mm tube reconnect the outlet pressure tap plug 8 Energize the control system and open upstream manual gas valve 9 After testing check all piping conn...

Страница 24: ...the problem For example a lockout will occur if the air pressure switches are not made Refer to separate trouble shooting guide for additional information Also check spark rod and flame rod to see if...

Страница 25: ...iring close the main manual firing valve and the pilot firing valve The automatic valves should close within 4 seconds and the flame ignition control should lock out within 10 to 15 seconds To return...

Страница 26: ...l growth or any other indoor air quality issues If mold or biological growth is present determine and fix the cause Properly remove and dispose of the contamination Properly clean and sanitize the aff...

Страница 27: ...in the pulleys the V belt does not have to be extremely tight It should be as loose as possible without slipping in the pulley grooves Belt deflection 3 4 19mm for each foot 300mm of span between the...

Страница 28: ...in lb 26 31 Nm 2 7 16 62mm 147 in lb 16 6 Nm 155 in lb 17 5 Nm 228 272 in lb 26 31 Nm 2 11 16 68mm 173 in lb 19 6 Nm 248 in lb 28 0 Nm 228 272 in lb 26 31 Nm 2 15 16 75mm 173 in lb 19 6 Nm 248 in lb 2...

Страница 29: ...inhibitors antioxidant additives and a minimum viscosity of 500 SSU at 100 F 38 C Some examples of grease having these properties are Shell Alvania RL 2 Mobil Mobilith SHC220 Exxon Ronex MP Lubricate...

Страница 30: ...tion temperature and surrounding conditions will affect the re lubrication frequency required Clean and repack bearing annually Remove old grease pack bearing full and fill housing reservoirs on both...

Страница 31: ...29 8 kW Over 40 HP Over 29 8 kW Less than 12 5 Years 3 Years 1 5 Years More than 12 2 Years 1 Year 9 Months NOTE Motors that run in severe conditions should be greased as specified by the motor manufa...

Страница 32: ...rost or snow Plugged or excessively dirty filters can cause damage to the equipment See submittal record for filter quantities sizes and types Use same size and type for replacement A High Velocity Pe...

Страница 33: ...lure to maintain clean coils can cause injury or death damage to the equipment property damage or system operational problems Moisture carry over can result from dirty coils The external surface of fi...

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