Greenheck IMO-311 Installation Manual

Document Number 464603

®

IMO-XXX & SSIMO-XXX series

Fire and Combination Fire Smoke Dampers

Vertical or Horizontal Mount

Installation, Operation and Maintenance Instructions

International Maritime Fire Test Procedure
Code

USCG Type Approved
Approval Number 164.139/0007/0

RECEIVING AND HANDLING

Upon receiving dampers, check for both obvious and
hidden damage. If damage is found, record all necessary
information on the bill of lading and file a claim with
the final carrier. Check to be sure that all parts of the
shipment, including accessories, are accounted for.

Dampers must be kept dry and clean. Indoor storage
and protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess of
100°F (37°C).

This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when the
job is complete.

Improper installation, adjustment, alteration,
service or maintenance can cause property damage,
injury or death. Read the installation, operating,
and maintenance instructions thoroughly before
installing or servicing this equipment.

SAFETY WARNING:

Installation Instructions

Greenheck’s IMO dampers were tested per the International Maritime Organization’s Fire Test Procedure (FTP)
code in a Class A bulkhead and in a Class A deck for 60 minutes. The FTP code requires that the ductwork
(coaming) be insulated and that the damper be bolted or welded to the duct.

1. Insulating the Duct

The ductwork must be insulated a minimum of 6 in. (152mm) on the damper side and 18 in. (457mm) on the
non-damper side (see figures 1-4). Any US Coast Guard type approved insulation with an A60 rating can be
used. The insulation is to be installed on the duct with 0.106 in. (2.7mm) steel pins and 1.12 x 1.24 x 0.4 in.
(28 x 31 x 10mm) steel clips.

2. Attaching Damper to Duct

The damper can be installed to the duct using either bolts or welding. If bolts are used , they are to be a
minimum of 0.375 in. (9.5mm) diameter and 1 in. (25mm) long. The fasteners should be spaced 6 in. (152mm)
OC and a maximum of 2 in. (51mm) from the corners.

Horizontal Airflow- Vertical Damper mount

6 in. (152mm)

18 in. (457mm)

Fig. 1

6 in. (152mm)

18 in. (457mm)

Fig. 2

Vertical Airflow- Horizontal Damper mount

IF HEIGHT <=11.00 in. (279mm)

IF HEIGHT >11.00 (279mm)

18 in. (457mm)

6 in. (152mm)

Fig. 3

18 in. (457mm)

6 in. (152mm)

Fig. 4