6
Approximate K factors for models:
242915-01: 1.32
242915-02: 1.39
242915-03: 1.46
242915-04: 1.46
242915-05: 1.58
242915-06: 1.67
Mounting
1. Install the unit horizontally to ensure accurate readings for units ranging
from 3-
5/32 ̋ to 9
-
29/32 ̋. If using
a unit longer than the 242915-05, which is 9-
29/32 ̋, vertical mounting is recommended.
2. Determine the duct’s flow direction and install the model 2429150-xx based on
the unit’s flow arrow imprint.
3. Cut a 7/8 ̋ hole in
the ducting to accept the unit; tip should be at least to the center of duct.
4. Attach using two self-tapping screws ins
erted in the 3/16 ̋ mounting ho
es.
3.0
Installation
The SRIMV is available in two models suitable for wall (flush mount) and surface
mounting (panel mounting). The front panel of the product and the rear housing are snapped
together. The two snaps are located on the left and right sides of the front panel. A 1.5mm
（
1/16
inch
）
Allen wrench or paper clip can be used to open the concealed snap fastening system.
The rear housing can be used to mount to a wall or into a 3 gang “off the shelf” electrical box.
Conduit (1/2”) or a PG9 cable connection are available for wiring to the terminals at the rear of the
unit. The rear housing acts much like a thermostat sub-base that does not have to be removed once
installed.
The front bezel contains the pressure sensor, PCBA and display. It is a complete module that can
be calibrated. The pressure and electrical connectors are disconnected simultaneously when the
front bezel is removed.
Before installing, determine a good installation location. For flush mount applications, the corridor
outside the room is preferred. For surface mount applications the unit may be mounted on the duct
work (avoid high vibration), a stable surface near the ductwork or inside a panel.