KI-OM-0591 Rev 3
9
Installation
2
Installation
2.1
General Mounting and Unit Placement
The Electric Powered Hot Water Heating Module, WHE-3, is built into a robust stainless steel
frame, which ensures that all the required systems and controls can be securely mounted
inside a single convenient assembly. The unit should be securely mounted in an area that is
protected from environmental elements. The unit mounting should allow free access on three
sides of at least 0.6 to 1 m for service and maintenance. The WHE-3 remote control panel is
fabricated using 316 stainless steel and designed to fit into a standard 19” rack mounting
arrangement. The remote control is to be connected to the WHE-3 via a multi-core shielded
cable.
2.2
Fluid Connections
The WHE-3 requires both salt and fresh water supply with a minimum flow rate of 45 ltr/min at
3 bar. The recommended minimum tubing size is 1”. The fluid input connections are made by
attaching the 1
″
pipes to the relative 3/4” NPT penetrator of the unit. Flexible hoses with
suitable connections may also be used to facilitate the integration of the unit into an
installation. The maximum acceptable water inlet pressure is 10 bar.
The WHE-3 outlet is a 3/4
″
NPT stainless steel penetrator. This may supply a valve manifold
or a single pipe connection depending on the installation requirements. The plumbing used
should be capable of withstanding the maximum working pressure of 68 bar. All valves,
fittings, tubing and manifolds connected to the hot water system must be capable of working
at this pressure. If the system is not required to deliver this pressure, the internal relief valve
may be set to a lower setting, and all the attached hot water delivery plumbing may be
selected to suit this reduced pressure.
A 1” (minimum) pipe must be connected to the overboard dump fitting allowing unrestricted
flow of bypass and dumped fluid from the unit.
DUMP LINE BLOCKAGE
TO ENSURE SAFE OPERATION OF THE UNIT THE DUMP LINE MUST ALWAYS BE
OPEN. SHUTTING OFF THE DUMP LINE WILL COMPROMISE THE SYSTEM SAFETY
AND COULD LEAD TO SEVERE INJURY.
The 1” dump line may be connected to any water dump system that has minimal back
pressure. The volume of water being dumped during manual and/or automatic control may
vary from 0 to approximately 15 ltr/min. When the pump relief valve vents, this vented flow is
added to the temperature control bypass flow that is flowing through the overboard dump. In
the event of full restriction of the pump output line the total dumped flow through the dump line
could reach 60 ltr/min.
Содержание WHE - 3
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