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I - Ship ping And Pack ing List

Package 1 of 1 contains: 

1 - Energy Recovery Ventilator 
1 - Outdoor Fresh Air Hood with Filter 
1 - Outdoor Exhaust Air Hood with Barometric Damper
1 - Adapter Panel
1 - Balancing Damper Assembly
1 - Platform Support Rail
1 - Top Filler Panel (

VR011A12H Only

)

1 - Bag Assembly

1 - Roll of ¾" x 1 ¼" gasket 
1 - 272" of 

1

8

" x ½" gasket 

1 - Field Wiring Harness for Low Voltage with 
     ECO 1001 economizer control board
   - Self-tapping screws 

 

   - Gold Screws 
   - Installation Instructions 

V  -  Ap pli ca tion

Unitary Energy Recovery Ventilator (UERV) are used with
3 to 6 ton rooftop units 

equipped with a balancing

damper assembly.

 These wheels 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 UERV 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
fresh 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. 

VI - Rig ging Unit For Lift ing

1.

Maximum weight of unit is — 537 Lbs.[Crated].

2.

Remove crating and retrieve bag assembly that is
inside of UERV. 

3.

All panels must be in place for rigging.

4.

Lifting straps are needed to lift the unit.

CAUTION

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

WARNING

Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
e l e c t r i c a l   p o w e r   t o   u n i t   O F F   a t
disconnect switch(es). Unit may have
multiple power supplies.

MAXA-MI$ER

Ô

UNITARY ENERGY RECOVERY VENTILATOR

MODEL VR011A12H & B12H (STATIONARY) 

 INSTALLATION

INSTRUCTIONS

5257541-UAI-A-0616 / R11A-29YSDW

ETL Certified per UL 1995
and CSA 22.2

E n e r g y   r e c o ve r y   C O M P O N E N T
certified to the AHRI Air-to-Air Energy 
Recovery Ventilation Equipment
Certification Program in accordance
w ith AHRI Standard 1060-2000.
Actual performance in packaged
equipment may vary.

UERV

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.

VII  -  In stal la tion

1.

Disconnect all power to the rooftop unit.

Note: Ensure that no power source is connected to the

unit. If the economizer is installed and power is
applied, de-energize all power sources to the unit
and use Lockout - Tag-out procedures. There may
be multiple power inputs to unit, so validate that all 
power sources are de-energized and tagged.

Summary of Contents for VR011A12H

Page 1: ...37 Lbs Crated 2 Remove crating and retrieve bag assembly that is inside of UERV 3 All panels must be in place for rigging 4 Lifting straps are needed to lift the unit CAUTION Danger of sharp metallic edges Can cause injury Take care when servicing unit to avoid accidental contact with sharp edges WARNING Electric shock hazard Can cause injury or death Before attempting to perform any service or ma...

Page 2: ...he installation of the UERV 10 Locate provided rolls of and 1 8 gasket material Apply gasket to the middle and bottom decks or the UERV apply the 1 8 gasket to the perimeter of the transition assembly that connects the RTU to the UERV 4 Install the provided balancing damper assembly into the return air section of the RTU See Figure 3 5 Adjusting the balancing damper for the minimum airflow require...

Page 3: ...ee Figure 8 15 Lower the UERV on to the platform support rail then secure the UERV to the adaptor panel using the provided screws 16 On units requiring a top filler panel install panel by tucking the top of the panel under the top of the RTU and angling in so that the bottom of the panel covers the top flange of the UERV Secure with provided screws See Figure 9 Note An equipment support or pressur...

Page 4: ... media is polymeric material that is coated and permanently bonded with a dry desiccant for total enthalpy recovery The wheel is belt driven by PSC motor and drive belt When slowly rotating through counter flowing exhaust and fresh air streams the UERV adsorbs sensible heat and latent heat from the warmer air stream and transfer this total energy to the cooler air stream during the second half of ...

Page 5: ...r dampers installed inside the RTUs return air section Adjustment of the damper is made by loosening the wingnut adjusting the damper blades and then tightening the wingnut before closing the panel and measuring again 4 Once desired the CFM is reached replace the plastic plugs in the access holes in the doors X Maintenance Motor Maintenance All motors use prelubricated sealed bearings no further l...

Page 6: ...Options AA No Options Installed L1 Low Ambient Kit LAK L2 LAK MOA L3 LAK MOA SSJ not used on P models L4 LAK MOA SSJ PS not used on P models L5 LAK SSJ not used on P models L6 LAK SSJ PS not used on P models L7 LAK PS L8 LAK MOA and PS M1 Motorized Outside Air MOA M2 MOA SSJ not used on P models M3 MOA SSJ PS PS not used on P models M4 MOA PS S1 Stop Start Job SSJ not used on P models S2 SSJ PS no...

Page 7: ...PAGE 7 ...

Page 8: ...PAGE 8 ...

Page 9: ...ack Field Harness J160 Jack Damper Motor Harness J161 Jack Damper Exhaust Motor Harness K163 Relay Exhaust Air Motor K164 Relay Fresh Air Motor MPD 1 Missing Pulse Detector Board Optional P48 Plug Fresh Air Motor Harness P50 Plug Wheel Motor Harness P51 Plug Exhaust Air Motor Harness P56 Plug Damper Motor Harness P148 Plug Fresh Air Motor P150 Plug Wheel Motor P151 Plug Exhaust Air Motor P152 Plug...

Page 10: ... p O 5 r e p m a d e k a t n i d e z i r o t o m l a n o i t p O 6 l o r t n o c g o j d n a t r a t s p o t s l a n o i t p O 7 d e e p s O L r o D E M r o f e r i w e r o t p u t e s d e e p s I H e h t s w o h s m a r g a i D s d e e p s O L r o D E M I H r o f d e r i w e b y a m t i n U 1 0 1 K B o t 1 0 1 H W t c e n n o c o s l A O L r o f 1 0 1 D R r o D E M r o f 1 0 1 L B t c e n n o c d...

Page 11: ...EQUIPMENT LAYOUT PAGE 11 ...

Page 12: ... ERV II SE Procedures to Backup Restore 1 Once the packaged unit is powered up the 120 second startup delay begins Once the delay expires there may or may not be a Start Up delay displayed To cancel the second time delay press the Cancel button for six seconds See Figure 1 Startup Figure 1 Update Figure 2 Backup Figure 3 2 Once the control is out of time delay mode press the Joystick down through ...

Page 13: ...ast you return by pressing the joy stick lever up until the Update screen appears Screen will read Contrler Controller Update Enter Cancel Buttons Figure 6 View Ver Figure 7 LoadFirm Figure 8 Confirm Figure 9 USB OK Figure 4 4 Press ENTER Screen will read View Ver Version Load Firm Backup 5 Toggle Joy stick down so the arrow is next to Load Firm 6 Press ENTER Screen shows software versions present...

Page 14: ...it control 1 Scroll through menus by pressing down on joystick Status Alarms Summary Commission Econ Economizer Enable Make sure this is set to Yes ERV En Figure 11 Econ En Figure 10 3 The economizer minimum setting must be set at 50 or greater Status Alarms Summary Commission PowerEx ERV Enable Make sure this is set to Yes 4 Once the ERV is set to Enable the ERV will operate any time the unit is ...

Page 15: ...PAGE 15 MAXA MI ERÔ UNITARY ENERGY RECOVERY VENTILATOR MODEL VR011A12H B12H STATIONARY INSTALLATION INSTRUCTIONS 5257541 UAI A 0616 R11A 29YSDW This Page Intentionally Left Blank ...

Page 16: ...apter panels as required Follow accessory and unit installation manuals q Verify field wiring including the wiring to any accessories q Check all multi tap transformers to insure they are set to the proper incoming voltage q Verify correct belt tension as well as the belt pulley alignment Tighten if needed q Prior to energizing the unit inspect all the electrical connections q Power the unit Bump ...

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