Installation and Service Manual

INSTALLATION – VERTICAL DEFLECTOR BLADES
Modine Manufacturing Company has a continuous product improvement program,
and therefore reserves the right to change design and specifications without notice.
Commercial Products Group • Modine Manufacturing Company • 1500 DeKoven Avenue • Racine, Wisconsin, USA 53403-2552
Phone: [phone] (HEAT) • www.modine.com
© Modine Manufacturing Company 2009 6-598.4 Litho in USA
Vertical Deflector Blade Model Application
The Vertical Deflector Blades are designed for use with
propeller and blower unit heaters. Installation of the
assembly is easiest prior to unit installation.
Assembly/Installation
The following section contains the recommended procedure
for assembly and installation of the vertical louver blade
assembly. Note that model sizes 30-155 feature a single
bank of louvers. Due to the larger discharge opening area,
model sizes 175-200 feature two louver banks and sizes 250-
400 feature four louver banks (refer to Figure 4.3). As a
result, the instructions below need to be repeated for each
louver bank on unit sizes 175 and larger.
1. Before beginning installation of the accessory vertical
louver blade assembly, remove the top and bottom
spring loaded louver blades from the unit heater on
which the vertical louvers are to be installed. This is to
allow working room for attaching the top and bottom
vertical louver brackets. These blades will be replaced
after the brackets are installed. To remove the spring
loaded louver blades, grasp the blade and apply
pressure against the blade retaining spring. After
compressing the spring, the tab on the opposite side of
the blade can be removed from the unit.
Note: Do not lose the louver blade retaining springs as
they will be required later to reinstall the blades.
2. Place one of the vertical louver mounting brackets on the
bottom edge of the unit discharge opening so that the
flanges of the bracket are facing down with one flange on
the inside edge of the bottom panel on the unit heater
(see detailed view in Figure 4.2). Attach with #10 x ½”
screws supplied with the kit.
3. Repeat the process outlined in Step 2 for the top vertical
louver mounting bracket except note that the flanges of
the bracket should face upward (see Figure 4.2).
4. Replace the two louvers removed from the unit heater in
Step 1. To install the spring loaded louver blades, place
the louver blade retaining spring over the left end tab of
the blade and guide the spring into the recessed dimple
in the left side panel of the heater. Apply pressure to
compress the spring and then insert the metal tab on the
opposite end of the blade into the tab clearance holes in
the right hand side panel of the heater. Rotate the
horizontal blades in the desired direction of air flow. Do
not operate unit with the blades in the closed position.
5. Insert the vertical louver bracket support rod through the
holes provided in the mounting flanges. Secure this
support rod with the acorn push nuts provided.
6. Install the vertical louver blades into the top and bottom
brackets, using the same process as outlined in Step 4.
7. Adjust deflector blades to obtain desired direction of heat
throw. Do not operate the unit with the blades in the
closed position.
Figure 4.1 – Vertical Blades Exploded View
Figure 4.2 – Vertical Louver to Unit Installation
Figure 4.3 – Vertical Louvers after Installation
(4) Louver Banks
on Size 350-400