REMBE Q-Box II LF User manual

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Q-Box II LF

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Table of Contents
Congratulations for your purchase of the REMBE®Q-Box II LF .You have a superb product
which incorporates the latest state of technology and which is approved by different authorities.
Before commencing the installation, please read this instructions carefully.
1. description
1.1 Safety information
1.2 Installation of the Q-Box II LF
enclosure dimension sheets
Attention!
It is essential that all instructions in this manual must be understood and followed
precisely to ensure proper operation of the equipment. In case of any questions (e.g. on
individual installation situation) please contact REMBE®.
1.1 Safety instructions
Attention:
The Q-Box-II LF is a high capacity system which decreases the immense energy during a dust
explosion.
Any kind of product damage can lead to a malfunction. The result is a dust explosion in the
environment of the protected vessel or in the production room.
Due to this safety function following restrictions are mandatory for safe use.
Restrictions:
Kst-Value: ≤200 bar x m / s
Pmax: ≤9 bar
min. ignition energy: ≥3 mJ
min. ignition temperature: ≥+698 °F, (+370°C)
Pred,max: ≤0.5 bar
ambient temperature: -58 °F - +248°F (- 50 °C to + 120 °C)
Process temperature: up to +356 °F, (+180°C) – dep. on gasket material
For sizing and positioning of the Q-Box-II LF on the equipment, we recommend you consult with
REMBE®, INC.
If REMBE®has not checked the sizing and positioning of the Q-Box II LF, the customer and/or
installing contractor has to ensure correct and sufficient design and installation.
Venting into explosion hazard area is not allowed.
The ratio of the room volume where the vented vessel is located to the vented vessel volume
has to be 15:1. By minor strengths bigger room volume or pressure relief of the room is needed.
The Q-Box II LFis suitable for organic and non toxic dusts.

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The Q-Box II LFsafety zone of 5 m (16.5ft) must be marked in the venting direction. This zone
shall not be entered during operation of the system. The safety zone can be reduced to 0.5 m
(1.65 ft) on the sides and by protection shields or similar means. The use of this equipment
needs to be confirmed by REMBE®.
The distance of the Q-Box II LF to walls or nearby equipment must be a minimum of 0.5m
(1.65ft) to guarantee the total venting and the function of the Q-Box II LF. Do not install
flammable or temperature sensitive equipment in this area.
Safety zone should be like sketch below.
The venting process can be influenced by units inside the zone (e.g. beam of the building, baffle
plates). In order to determine the influence of these units on the venting process, please contact
experts.
Beyond the safety zone, a small release of dust during the venting process is possible. In some
cases, depending on the product, harmful combustion by-products may occur. If there are any
questions please contact REMBE®for assistance. A general statement is impossible.
Safety zone 5 m (16.5
ft)
Q-Box
View tag plate side

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Safety zone in case of installation close to the ground
Q
-
Box S
ide view
Safety zone 5 m
(16.5 ft)

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The Q-Box-II LF system works maintenance-free. The outside of the filter system must be free
of dust deposits. Any dust accumulation has to be removed during standstill of the system with a
soft brush and / or by a vacuum cleaner. Inspection intervals are heavily dependent on the
specific area conditions. After starting up, inspections should be conducted monthly. If there are
no dust deposits or effects, the inspection intervals can be expanded step by step but have to be
conducted at minimum once a year.
Wet cleaning on installation place is not allowed.
In case of an explosion the plant must immediately shut down by an adequate signaling unit.
Optical and acoustical alarm shall force personnel to leave the building for safety reasons.
Procedure after activation
The person responsible for safety must be informed immediately. When the situation is under
control and danger by burns or secondary explosions can safely be excluded, contact REMBE®,
INC. (provide the serial/batch-no. of the Q-Box-II LF system) for further advice.
A manual for refurbishment is available on request.
Essential safety instructions for fire and explosion hazards have to be observed.
1.2 Installation of the Q-Box II LF
During transportation and installation, suspending of the Q-Box II LF is only allowed by using the
attached eyes.
During installation of the Q-Box-II LF, pay attention to the following items:
Connection flange
Compare the dimensions of the existing flange with the Q-Box II LF connection dimensions in
the drawing on page 7 and 8.
Clean the sealing surfaces at the mounting location and the gasket of the Q-Box II LF carefully.
After positioning the Q-Box II LF tighten all studs and nuts cross-like.
The housing of the Q-Box II LF has to be grounded.
Attention!
Warranty is completely voided if these instructions or parts of them are not observed.
The user is responsible for proper use and durability of the above-described product.

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