Installation Checklist - LG MULTI V ARNH423K3A4 Installation Manual

Hydro kit high temperature (k3)

Table of Contents

System ID No.: ________________________________________________Hydro Kit Unit ID.: ____________________________________

Checked by: __________________________________ Date:__________________ Signature:___________________________________

Installation

Packing materials and literature located and stored in a safe location.

Unit is properly supported – mounting bolts tight.

Unit is canted toward gravity drain line connection (K2 only).

Minimum service clearances followed.

Inlet water strainer is clean and properly installed.

Does local code require a secondary drain pan under the Hydro Kit? Is a secondary drain line connected

to the pan?

Refrigerant Piping

A dry nitrogen purge rate of three (3) psig was maintained during all brazing activity.

Refrigerant pipe is properly supported to keep lateral pressure off unit connections.

Refrigerant shutoff valves are full port design with integral Schrader port rated for R410A (option).

Shutoff valves have the same internal pipe diameter as the connected pipe (option).

Two shutoff valves were installed; one (1) high pressure liquid, one (1) low pressure vapor (option).

Shutoff valves installed with Schrader port between the indoor unit and the ball of the valve (option).

Condensate System

Condensate pipe is properly sized and supported to keep lateral pressure off unit connections.

Condensate pipe horizontal segments are sloped a minimum of 1/4" per foot of pipe away from the indoor unit.

Condensate pipe is routed and secured in place to facilitate discharge to an approved drain.

Insulation

Additional housing, refrigerant and condensate pipe insulation has been supplemented to prevent sweat-

ing while operating if the Hydro Kit unit installed in abnormal environmental conditions. (Optional - job

condition specific.)

All refrigerant and chilled water pipes are independently insulated. All insulation seams and joints are air-

tight. Insulation is not compressed. Double layer insulation is provided at pipe supports and wall penetra-

tions.

Electrical

Power provided is single phase, ±10% of indoor unit nameplate specifications.

Power wires properly sized and protected per NEC and local codes. Indoor unit is properly grounded.

Power and communications conductors are separated by the listed minimum distance.

Terminal block screws are tight. Power wires are not in contact with terminals (3(A) and / or 4(B). Line

voltage wires have spade connectors installed.

Power wires are properly secured to the control box case to prevent wire tension at the terminal block.

Wires are protected from chaffing at control box and conduit pipe penetrations.

Communications cables are properly secured to the control panel case. Terminal block screws are tight

and the cable is protected from sharp edges at control box case and conduit openings.

Cables are installed at listed minimum distances from high voltage and EMF generating equipment.

Communications cable between the outdoor (water source) unit and the Hydro kit is terminated at termi-

nals tagged (terminals 3[A] and 4[B]).

Communications cable is to be 18 AWG, 2 conductor, twisted, stranded, shielded. Ensure the communi-

cation cable shield is properly grounded to the Master Outdoor Unit chassis only.

communication cable at any other point. Wiring must comply with all applicable local and national codes.

Communications cable insulation material is accepted by local code enforcement.

No inline splices or wire caps are present.

Use appropriate crimping tool to attach ring or fork terminals at all power wiring and control cable termina-

tions.

Communications cable shield is tied back, continuous between the Hydro Kits and the other indoor units

and is grounded at the outdoor (water source) unit only.

Due to our policy of continuous product innovation, some specifications may change without notification.