Lochinvar LOKE8-100, Installation, Commissioning, Maintenance And User Instructions, Page: 4 / 28

4
1.0 INTRODUCTION
The Lochinvar LOKE Instantaneous packaged plate heat exchanger is designed to heat domestic hot water (DHW) using low
temperature hot water (LTHW) from a boiler or similar. The unit is designed with a low return temperature during demand to ensure
boilers are in continuous condensing mode.
LTHW is supplied to the unit from the low loss header by a primary DHW pump at the design flow rate as shown in the Technical
data table according to the model being fitted.
The primary DHW pump is not supplied with the unit.
When there is a DHW demand the three-port control valve modulates to allow LTHW to be pumped through the plate heat exchanger
providing DHW at the required set point.
The temperature of the DHW outlet is monitored at the fixed sensor on the DHW outlet pipe, this will send a signal to the controller
which then modulates the control valve maintaining setpoint.
ANCILLARY OPTIONS
•
Unvented system kit
o
CLK3520 for use with Models LOKE8-50 to LOKE8-150
o
COLK3503 for use with Models LOKE-175 to LOKE8-250
•
Direct storage vessels with matched primary circulation pumps
For units being installed with a storage vessel contact Lochinvar Limited Internal Sales for a suitable
unvented kit
•
Heat exchanger insulation jacket
•
Skid mounting base
2.0 SAFETY GUIDELINES
READ AND UNDERSTAND THE INSTRUCTIONS
Read and fully understand all instructions before attempting to operate maintain or install the unit.
Keep these instructions near the water heater for quick reference.
This equipment must be installed by a competent person. All installations must conform to the relevant Building Regulations.
Health & Safety requirements must also be considered when installing any equipment. Failure to comply with the above may lead
to prosecution
Without written approval of the manufacturer the internals of the water heater may not be changed. When
changes are executed without approval, the water heater certification and warranty becomes invalid.
Commissioning, maintenance and repair must be done by a skilled installer/engineer, according to all applicable standards and
regulations.