Installation
Water Supply Connection
CAUTION: Ensure that all plumbing connections meet local plumbing code requirements. Ensure that the location
of the plumbing connection allows for easy access to allow for shutoff during scheduled maintenance.
Water Quality
Normal tap water can be used in the Opti-myst®. In areas with hard water, a water softener is recommended
and more frequent cleaning and maintenance may be required. Unfiltered water supplied from a well or another
unmonitored supply is not recommended. The product is provided with an in-line mesh filter to help remove
contaminants and extend the life of the product.
Plumbing Instructions
The units are designed to be hard plumbed by connecting to a water source using standard 1/4" (6.4 mm) O.D. tubing.
A plumbing accessory kit CDFIPLUMB-KIT, designed for use with copper piping, is available from your Dimplex
dealer.
1. Prepare a cold-water line in the vicinity of the desired installation location of the fireplace. Ensure that the location
of the plumbing connection allows for easy access to allow for shutoff during scheduled maintenance.
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NOTE: Once the new plumbing connections are complete ensure that the lines are flushed to prevent any debris
from going into the unit.
2. Lift the media tray out of the unit and set it aside.
3. Connect the water line, reduced to 1/4" tubing, to the main valve located in the bottom left side of the unit. (Figure 6)
CAUTION: Ensure that the end of the tubing is cut square to prevent leaking.
4. Connect the water supply tubing to the main water valve by removing the locking ring and inserting the tubing so
that it is fully inserted (approximately 1/2" [12 mm]). Reinstall the locking ring.
5. Complete electrical installation steps before opening the main water valve.
6. Priming (pre-filling with water) is required. See Priming the Unit on page 22.
Figure 9
Main water valve
(shown in closed position)
Refillable Water Containers
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NOTE: Not recommended for applications with frequent use.
If direct connection to a water supply is not possible, the reservoir can be manually filled using an Opti-Myst
refillable container (9601350100RP) (not provided) which can be purchased at www.dimplex.com/replacement_parts.
One container will be needed for each flame module in the fireplace. One refill will provide up to 6 hours of flame
operation. The front glass and media tray will need to be removed each time the containers need to be refilled.
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