Lochinvar HS 50 Series 100, User'S Information Manual

3

INTRODUCTION

Thank you for purchasing this heat pump water heater. Properly 
installed and maintained, it should give you years of trouble 
free service.

Abbreviations found In this Instruction Manual include:

   • HPWH - Heat Pump Water Heater
   • ANSI - American National Standards Institute
   • ASME - American Society of Mechanical Engineers
   • NEC - National Electrical Code
   • NFPA - National Fire Protection Association
   • AHRI - Air-conditioning, Heating and Refrigeration Institute

QUALIFICATIONS 

QUALIFIED INSTALLER OR SERVICE AGENCY:

Installation and service of this water heater requires ability 
equivalent to that of a Qualifi ed Agency (as  defi ned by ANSI 
below) in the fi eld involved Installation skills such as plumbing, 
electrical supply are required in addition to electrical testing 
skills when performing service. 

This heat pump water heater contains R-134a refrigerant and 
is regulated as a stationary refrigeration appliance under Section 
608 of the Clean Air Act. Servicing of the refrigeration circuit 
must only be performed by agencies or individuals possessing 
Type II or Universal certifi cation as defi ned in Section 608 of 
the Clean Air Act.

ANSI Z223.1 2006 Sec. 3.3.83: “Qualifi ed  Agency”  -  “Any                          
individual, fi rm, corporation or company that either in person 
or through a representative is engaged in and is responsible 
for (a) the installation, testing or  replacement of gas piping or 
(b) the connection, installation, testing,  repair or servicing of 
appliances and equipment; that is experienced in such work; 
that is familiar with all precautions required; and that has complied 
with all the requirements of the authority having jurisdiction.”

PREPARING FOR THE INSTALLATION 

1.  Read  the  “General  Safety  Information”  section  of  this                     
manual First and then the entire manual carefully. If you don’t 
follow the safety rules, the heat pump water heater may not 
operate safely. It could cause DEATH, SERIOUS BODILY INJURY 
AND/OR PROPERTY DAMAGE.

This manual contains instructions for the installation, operation, 
and maintenance of the heat pump water heater (HPWH). It 
also contains warnings throughout the manual that you must 
read and be aware of. All warnings and all instructions are 
essential to the proper operation of the HPWH and your safety. 

READ THE ENTIRE MANUAL BEFORE ATTEMPTING TO INSTALL 
OR OPERATE THIS WATER HEATING APPLIANCE.

Detailed  installation  diagrams  are  in  this  manual.  These                       
diagrams will serve to provide the installer with a reference 
for the materials and suggested methods of piping. IT IS 
NECESSARY THAT ALL WATER PIPING AND THE ELECTRICAL 
WIRING  BE  INSTALLED  AND  CONNECTED  AS  SHOWN  IN  THE               
DIAGRAMS.

Particular attention should be given to the installation of the 
system (tank) temperature control. See page 16.

Be sure to turn off  power when working on or near the electrical 
system of the heat pump. Never touch electrical components 
with wet hands or when standing in water. When replacing 
fuses always use the correct size for the circuit.

The principal components of the HPWH are identifi ed in the 
Features And Components section of this manual on page 5. 
The rating label on the HPWH also provides useful information. 
These references should be used to identify the heat pump, its 
components and optional equipment.

2.   The installation must conform with these instructions and the 
local code authority having jurisdiction and the requirements of 
the power company. In the absence of local codes, the installation 
must comply with the latest editions of the National Electrical 
Code, ANSI/NFPA 70 or the Canadian Electrical Code CSA C22.1. 
The National Electrical Code may be ordered from: National 
Fire Protection Association, 1 Batterymarch Park, Quincy, MA 
02269.

The Canadian Electrical Code is available from the Canadian 
Standards Association, 8501 East Pleasant Valley Road, Cleveland, 
OH 44131.

3.   If after reading this manual you have any questions or do 
not understand any portion of the instructions DO NOT proceed 
with the installation. Call the toll free number listed on the 
back page of this manual for technical assistance.