ECFanGrid
TM
FG - 1601
Installation, Operation and Maintenance Instructions
©2017 Rosenberg Fans Canada Ltd.
INSTALLATION of CONSTANT VOLUME CONTROL
SYSTEM
A FANGRID System requires the measurement of
negative Air Pressure within the Space in front of the
Inlet Fans Area. The measurement device consists of ¼”
nylon tubing and 1/8” nylon tees forming a circular
‘Loop’ in the interior of the Space. The distance of the
circular ‘Loop’ from the Inlet Fan Face Area is calculated
by the following
Formula, where (a) and (b) represent the width and
height of the space:
INTERFACE of the CONTROL SYSTEM
The Flow Control of the FANGRID is established by the
connection of the circular ‘Loop’ and the ‘Pitot Ring’ on
each of the Inlet Cones to a DIFFERENTIAL PRESSURE
TRANSDUCER, which converts the Differential Pressure
with
Calibration Factor (k-factor)
of the Fan System.
ELECTRICAL CONNECTIONS
When installed, the FANGRID and optional Controls
shall be wired and electrically grounded in accordance
with local codes as well as with the National Fire
Protection Association (National Electrical Code),
ANSA/NFPA70 and/or the Canadian Electrical Code CSA
C22.1. The FANGRID installation must have an
uninterrupted, ground to minimize possible personal
injury, should any electrical fault occur. Failure to follow
this procedure could result in that the Installer being
liable for personal injury to others.
Electrical characteristics of each individual Fan in the
FANGRID, specifies maximum voltage and amperage
requirements, for optimum performance.
Required Line Voltage(s) and/or Control Voltage(s) are
detailed and specified in the attached APENDIX A, B, C &
D.
Pre START-UP Check
A – Lock-Out Main Power disconnect to the FANGRID,
prior Module or UnoBox check.
B – On outlet/discharge side check for visible damage
resulting from installation.
C – Check backdraft damper(s) for smooth operation, if
supplied and move dampers to ensure full range of
motion.
D – On inlet side check for damage to inlet cone plate
and inlet cone.
E – Rotate the fan wheel(s) by hand and ensure that
they are properly aligned with inlet cone.
F – Check VFD sizing and ratings for voltage and
horsepower.
G – Check in coming voltage at main disconnect against
phase to phase on three phase electrical system. – if is
not within 5% of Fan Nameplate Rating or 2% of phase
to phase, the condition must be corrected prior to start-
up.
