lp-451 Rev. 001 Rel. 001 Date 7.25.17
2
The following defined terms are used throughout this manual to
bring attention to the presence of hazards of various risk levels or to
important product information.
DANGER
indicates an imminently hazardous situation which, if not
avoided, will result in serious personal injury or death.
WARNING
indicates a potentially hazardous situation which, if not
avoided, could result in personal injury or death.
CAUTION
indicates a potentially hazardous situation which, if not
avoided, may result in moderate or minor personal injury.
CAUTION used without the safety alert symbol
indicates a
potentially hazardous situation which, if not avoided, may result in
property damage.
NOTICE
is used to address practices not related to personal injury.
Foreword
This manual is intended to be used in conjunction with other literature
provided with the water heater. This includes all related control
information. It is important that this manual, all other documents
included in this system, and additional publications including the
Code for the Installation of Heat Producing Appliances
(latest version), be
reviewed in their entirety before beginning any work.
Installation should be made in accordance with the regulations of
the Authority Having Jurisdiction, local code authorities, and utility
companies which pertain to this type of water heating equipment.
Authority Having Jurisdiction (AHJ) – The AHJ may be a federal, state,
local government, or individual such as a fire chief, fire marshal, chief
of a fire prevention bureau, labor department or health department,
building official or electrical inspector, or others having statutory
authority. In some circumstances, the property owner or his/her agent
assumes the role, and at government installations, the commanding
officer or departmental official may be the AHJ.
NOTE:
HTP reserves the right to modify product technical specifications
and components without prior notice.
For the Installer
This water heater must be installed by qualified and licensed personnel.
The installer should be guided by the instructions furnished with the
water heater, and by local codes and utility company requirements.
Installations Must Comply With:
Local, state, provincial, and national codes, laws, regulations, and
ordinances.
Part 1 - General Safety Information
This water heater is approved for indoor installations only and is
not intended for use as a pool heater. Clearance to combustible
materials: 0” top, bottom, sides, and back. Heater must have room
for service: 24” front, 6” top, and 0” sides are minimum recommended
service clearances. (A combustible door or removable panel is
acceptable front clearance.) This water heater has been approved
for closet installation and installation on combustible flooring. Do
not install directly on carpeting. Install the water heater in a location
where temperature and pressure relief valve discharge or a leak will
not result in damage to the surrounding area. If such a location is
not available, install an auxiliary catch pan.
Installer -
Read all instructions in this manual before installing.
Perform steps in the given order.
User
- This manual is for use only by a qualified heating installer
/ service technician. Have this water heater serviced / inspected
annually by a qualified service technician.
FAILURE TO ADHERE TO THESE GUIDELINES CAN RESULT
IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL
INJURY, OR DEATH.
Table of Contents
Part 1 - General Safety Information
2
A. When Servicing the Water Heating System
3
B. Heater Water
3
C. Freeze Protection
3
D. Water Temperature Adjustment
3
Part 2 - Prepare the Water Heater
3
A. Locating the Water Heater
3
B. Water Chemistry Requirements
4
Part 3 - Piping
6
A. Plumbing
6
B. Boiler Connections
6
C. Domestic Piping Inlet
6
D. Auxiliary Connections
6
E. Temperature and Pressure Relief Valve
6
F. Scalding
7
G. Potable Expansion Tank
7
H. Pressure Drop Sizing For Circulator
7
I. Applications
8
Part 4 - Heater Control and Wiring
9
A. Control
9
B. Wiring
9
C. Wiring Diagrams
9
Part 5 - Start-Up and Operation
10
Part 6 - Maintenance and Troubleshooting
11
Limited Warranty
13
Customer Installation Record Form
15
NOTE:
Obey all local codes. Obtain all applicable permits before
installing the water heater.
NOTE:
Install all system components and piping in such a manner
that does not reduce the performance of any fire rated assembly.
NOTE:
If the water heater is exposed to the following, do not
operate. Immediately call a qualified service technician.
1. Fire
2. Damage
3. Water
Failure to follow this information could result in property damage,
severe personal injury, or death.