Placement Considerations - LG MULTI V WATER MINI Engineering Manual

Table of Contents

Selecting the Best Location

The water source unit must be installed indoors in a mechanical room. The mechanical room must be designed such that equipment vibra-

tion or noise does not affect surrounding rooms, and is properly ventilated or conditioned to maintain temperature range. Mechanical room

temperature is required to be maintained between 32°F and 104°F. The water source unit will reject heat to the mechanical room. See the

"General Data" on page 11 for heat rejected to the equipment room.

• The water source unit must also be located where the refrigerant pipe distance does not exceed the design limits. Location of the water

source unit must be strategically located in the building to minimize refrigerant piping materials, labor, and refrigerant.

• The underlying structure or foundation must be designed per local codes and support the weight of the unit. Units can be stacked above

each other as long as each water source unit is independently supported. Minimum clearances must be maintained either per recommenda-

tions shown in the figure below or local codes, whichever is greater. Include enough space in the installation area for service access.

• The mechanical room floor must be waterproof. Periodic flushing of the water heat exchanger will be required, and a floor drain will help

facilitate this maintenance.

•

Do not expose the water source unit to oil, steam, combustible gases, sulfur, or other corrosive environments. Avoid exposure to elec-

tromagnetic waves from equipment including, but not limited to, generators, MRI equipment, or other equipment that emits electromagnetic

waves.

• When piping, towers, or other system components that contain water are exposed to areas where the temperature may fall below 32°F,

antifreeze solution must be used. Freezing of the heat source water will damage the plate heat exchanger. Antifreeze solution includes

proper mixtures of ethylene glycol, propylene glycol, or methanol to the water to prevent freezing. Addition of water heater/boiler to maintain

minimum temperatures must be considered.

Installation Space

When installing the water source unit, consider service / minimum

allowable space requirements as illustrated.

Mounting Platform

The underlying structure or foundation must be designed to

support the weight of the unit. Avoid placing the unit in a low lying

area where water may accumulate.

General Mounting

Securely attach the water source unit to a concrete pad, base rails,

or other mounting platform that is securely anchored to the building

structure. Refer to dimensional drawings in the "Product Data"

section, and follow the applicable local code for clearance, mount-

ing, anchor, and vibration attenuation requirements.

• Corners must be firmly attached, otherwise, the support will bend.

• Use a 7/16 inch or 1/2 inch diameter J-bolt. Use a hexagon nut

with a spring washer.

• Include anti-vibration material.

• Include enough space for refrigerant piping and electrical wiring

when installing through the bottom of the unit.

• Use an H-beam or concrete support.

Figure 33: Close up of Anchor Bolts.

Spring Washer

Unit Mounting

Nut

Foot

H-Beam