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INSTALLATION INSTRUCTIONS

EN ERGY  RE COV ERY  WHEEL

INSTALLATION INSTRUCTIONS FOR ENERGY RECOVERY WHEEL (Fixed) USED WITH

ROOFTOP UNITS MODELS 2 TO 5 TON  UNITS

I - Ship ping And Pack ing List

Package 1 of 1 contains:
1 - Energy Recovery Wheel Assembly

1 - Bag Assembly of Mounting Screws
1 - Low Voltage wiring Harness
1 - Gasketing (160" of 

1

8

" and 24" of 1 

1

8

")

1 - Group of Wrapped Assemblies

1 - Rooftop Unit Adapter Panel w/ Platform Support
     Rail
1 - Filler Panels
1 - Return Air Balancing Damper Assembly

II - Ship ping Dam age

Check unit for shipping damage. Receiving party should
contact last carrier immediately if shipping damage is
found.

III - Gen eral

These instructions are intended as a general guide and do
not supersede local codes in any way. Authorities having
jurisdiction should be consulted before installation.

IV - Re quire ments

When installed, the unit must be electrically wired and
grounded in accordance with local codes or, in the
absence of local codes, with the current National Electric
Code, ANSI/NFPA No. 70.

V  -  Ap pli ca tion

Energy Recovery Ventilators (ERV) are used with  rooftop
units. These ventilators conserve energy by mixing
warmer air with cooler air in the following manner:

Re cov ery  Wheel  Mode

The Recovery Wheel mode is accomplished by two
blowers providing continuous exhaust of stale indoor air
and replacement by equal amount of outdoor air. Energy
recovery is achieved by slowly rotating the energy
recovery wheel within the cassette frame work. In winter,
the ERV adsorbs heat and moisture from the exhaust air
stream during one half of a complete rotation and gives
them back to the cold, drier intake air supply during the
other half rotation. In summer, the process is automatically
reversed. Heat and moisture are absorbed from incoming
intake air supply and transferred to the exhaust air stream.
This process allows outdoor air ventilation rates to be
increased by factors of three or more without additional
energy penalty or increase in size of heating or air
conditioning systems.

R06A-45CDW

JUNE 28, 2006

SUPERCEDES 05-04-04

PAGE 1

VI - Rig ging Unit For Lift ing

1.

Maximum weight of unit is — 198 Lbs. [Carton].

2.

Remove carton.  Internal box has accessory inside.

3.

All panels must be in place for rigging.

CAUTION

Danger of sharp metallic edges. Can cause injury.
Take care when servicing unit to avoid accidental
contact with sharp edges.

VII  -  In stal la tion

1.

Remove and discard the rooftop unit horizontal return
air access panels, hoods and/or power exhaust
equipment. 

2.

Remove carton from ERV and remove individual
wrapped assemblies.

3.

At the rooftop unit remove filter access panel and door
below it (discard). 

4.

Then insert balancing damper over bottom return air
opening.  

5.

Attach adapter panel over balancing damper panel
with removed screws. Verify platform support rail is
attached to adapter panel.

6.

At the ERV, remove screws from side of adjustable leg
supports. Then slide telescoping part of leg out of
guide from the top. Tip ERV unit forward reinserting
into bottom of guide having attached flat foot under
unit.

7.

Place screws back into side of adjustable leg supports, 
adjustment will need to be made later when unit is put
into position.

8.

Position with ERV open face pointed toward adapter
panel.

9.

Attach provided gasketing material (1 

1

8

") to seal ERV

divider deck to adapter panel.

10. Attach provided gasketing material (

1

8

") to face

(perimeter) of ERV unit to prevent air leakage.

11. Pick up the ERV unit and lower onto platform support

rail aligning hole in the front edge of ¾" flange with
holes in adapter panel.

ETL Certified per UL 1995
and CSA 22.2

Energy recovery COMPONENT
certified to the AHRI Air-to-Air
E n e rg y  R e co ve r y  V e n t i l at i o n
Equipment Certification Program in
accordance with AHRI Standard
1060-2000. Actual performance in
packaged equipment may vary.

Summary of Contents for RRS ROOFTOP

Page 1: ...haust air stream This process allows outdoor air ventilation rates to be increased by factors of three or more without additional energy penalty or increase in size of heating or air conditioning systems R06A 45CDW JUNE 28 2006 SUPERCEDES 05 04 04 PAGE 1 VI Rigging Unit For Lifting 1 Maximum weight of unit is 198 Lbs Carton 2 Remove carton Internal box has accessory inside 3 All panels must be in ...

Page 2: ...n then the other Because it is always dry dust or other particles impinging on the surface during one half cycle are readily removed during the next half cycle In the heating season when outdoor air temperatures are below 0 degrees Fahrenheit it is recommended to use the optional low ambient kit field installed At these conditions you will need to determine the frost threshold parameters 12 Elevat...

Page 3: ...e method 3 Repeat the same process for the bottom half of ERV If CFM values are not per design adjust internal slide damper inside the ERV This is accomplished by removing door panel at the return air opening loosening 2 screws in center of damper then slide damper up or down in the return airstream and retighten screws Replace door panel and repeat measurement method Some applications may require...

Page 4: ...E DROP 0 36 0 42 0 48 0 54 0 60 0 66 0 87 0 80 0 73 0 66 0 77 0 67 0 55 0 4 0 00 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 90 1 00 300 350 400 450 500 550 SCFM Equation of line SCFM PD 0 0012 TABLE 1 PRESSURE DROP in of W C R06 Series Blow Hi Blow Lo ...

Page 5: ...nterface J148 Jack Fresh Air Motor Harness J150 Jack Wheel Motor Harness J151 Jack Exhaust Air Motor Harness J153 Jack Field Harness J160 Jack Damper Motor K94 Relay On Off Optional P1 Plug P C Board Damper Motor P2 Plug P C Board Wheel P3 Plug P C Board Exhaust P4 Plug P C Board Fresh P33 Plug Cycle Control Optional P34 Plug Cycle Control Harness Optional P40 Plug Wheel Cycle Optional P92 Plug Tr...

Page 6: ...umper to install field optional low ambient switch 2 Step down transformer assembly for 208 230 460 575 volt units 3 For energy management systems connect 24v to green and common 24v to black 4 Optional low ambient switch 5 Optional motorized intake damper 6 Optional stop start and jog control ERV UNIT WIRING DIAGRAM ...

Page 7: ...PAGE 7 Illustration 1 Field Wiring ...

Page 8: ...PAGE 8 ...

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