Ruskin ENERVENT+ EVT-09 Series, Installation, Start-Up And Maintenance Instructions

4 REVT-05ERV

IV - FEATURES and OPTIONS (Figure 1)

A.  BASIC UNIT - STANDARD FEATURES
1.  BASE RAIL 

- Full perimeter, reinforced, heavy-gauge 

base rail with forklift slots and rigging holes maintains 

structural integrity during transportation, handling, 

and installation.

2.  MODULAR FRAME

 - Extruded aluminum Modular 

Frame System adds structural strength and rigidity 

to entire cabinet. Assures a square, sturdy overall 

structure and frame for access doors and other 

openings such as supply and return openings.

3.  DOUBLE-WALL CONSTRUCTION

 - All exterior 

panels, plus divider panel between supply and 

exhaust chambers, are double-wall construction; 

which, along with multiple modular framing cross 

members, adds strength and rigidity to the top and 

bottom panels. Each panel has an interior core of 1 

inch, R-3.6 fiberglass insulation for effective thermal 

and acoustical performance.

4.  ACCESS DOORS

 - Hinged with tool-less, quarter-

turn latching handles that possess a "cam latch" 

assuring tight air and water seal. Provide quick 

access to components and protect panels and roof 

from damage. Hinges and handles are made of high 

strength nylon reinforced fiberglass.

5.  AIRXCHANGE ERC

 - Standard Energy Recovery 

Cassette is an all-welded stainless steel assembly 

containing a desiccant coated (enthalpy) wheel. 

Desiccant used is silica gel, which has superior 

moisture handling capacity in the working range 

above 30% R.H., the range of greatest concern. 

Patented and proprietary process permanently bonds 

desiccant to surface without adhesives permitting 

long life with repeated washings without loss of 

effectiveness.  Removable,  light  weight  segments 

make easy cleaning and replacement possible and 

convenient. An AHRI  Certified  Component  assuring 

credible and reliable performance per AHRI Standard 

1060. 

6.  SILENT-PRO® BLOWERS

 - Manufactured 

specifically  for  Ruskin  Rooftop  Systems  by  Lau 

Industries  to  a  proprietary  specification.  Shafts  are 

ground and polished steel mounted in permanently 

lubricated, sealed, ball bearing pillow-block bearings 

selected for a minimum life of L-10. All supply and 

exhaust blowers are belt driven to allow independent 

balancing of supply and exhaust airflow.

7.  VIBRATION ISOLATORS

 - Both the  supply and the 

exhaust blowers are mounted on neoprene vibration 

isolators providing additional acoustical performance.

8.  BLOWER MOTORS and DRIVES

 - NEMA Premium 

Efficient motors that exceed requirements of Energy 

Policy Act of 1992.  Base mount with easy adjustment 

of belt tension. Mounting permits "slide-out" of motor 

and adjustable mount for easy service or replacement. 

All drive combinations are sized for 150% of driven 

horsepower. Low, medium, and high speed drive kits 

are available to achieve required CFM range.  Fixed 

diameter cast iron pulley on blower with adjustable 

EXTERIOR VIEWS

pitch cast iron sheave on motor - laser aligned for 

V-belt connection. 

9.  AIRFLOW CHOICE

 - Available in downflow (vertical) 

or horizontal supply and return airflow configuration.

10. OUTDOOR AIR HOOD

 - Angled to prevent water 

induction and includes 1 inch aluminum mesh mist 

elimination  filters.  Shipped  as  a  separate  kit  with 

instructions for field assembly and installation.

11.  EXHAUST AIR HOOD

 - Shipped separately as an 

assembly  for  field  installation.  Includes  back  draft 

dampers and cover screen.

12. AIR FILTERS

 - Supply and return MERV 8 (optional 

MERV 11 and MERV 13 available), 2 inch pleated 

filters with average dust spot efficiency of 30-35%.

13. CONTROLS

 - All internal electrical components 

are factory wired for single-point power connection.  

Units with electric pre-heat and/or post-heat are wired 

with  field  supplied  independent  power  supply.  All 

components are UL Listed, Approved, or Recognized 

where applicable and wired in compliance with 

National Electric Code (NEC). Hinged external access 

door to control box has an interlocking, fused NEMA 

3R disconnect switch.  Control box containing all 

major electrical control components has removable 

cover panel. 

Direct Digital Controller

 - Unit controls are 

performed by a Johnson Controls FEC programmable 

direct digital controller with features that allow state 

of the art commercial HVAC control. The controller 

communicates with Building Automations Systems 

that support the BACnet application specific controller 

profile.  Every  Unit  has  a  Device  Address,  MAC 

Address, and baud rate set at the factory to customer 

specifications to assure communication compatibility 

in the field.