HTP SSU-20 - Default Chapter; Table of Contents

lp-83 Rev. 006 Rel. 005 Date 12.18.17
2
The following dened 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 SuperStor Indirect Fired 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 Authority Having Jurisdiction
may be a federal, state, local government, or individual such as a re
chief, re marshal, chief of a re prevention bureau, labor department
or health department, building ocial 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 ocer or departmental ocial may be the AHJ.
NOTE: HTP reserves the right to modify product technical specications
and components without prior notice.
For the Installer
This water heater must be installed by qualied 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 installation 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 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 ooring. 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 qualied heating installer
/ service technician. Have this water heater serviced / inspected
annually by a qualied service technician.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE
PERSONAL INJURY, OR DEATH.
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 re rated assembly.
NOTE: If the heater is exposed to the following, do not operate
until all corrective steps have been made by a qualied serviceman:
1. Fire
2. Damage
3. Water
Failure to follow this information could result in 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 4
B. Performance and Sizing Guidelines 6
C. Reduced Boiler Input Sizing Guide 7
D. Water Chemistry Requirements 8
Part 3 - Piping 8
A. Plumbing 8
B. Boiler Connections 8
C. Domestic Piping Inlet 8
D. Temperature and Pressure Relief Valve 9
E. Scalding 9
F. Potable Expansion Tank 10
G. Pressure Drop Sizing For Circulator 10
H. Applications 10
Part 4 - Heater Control and Wiring 15
A. Control 15
B. Wiring 15
C. Wiring Diagrams 15
Part 5 - Start-Up and Operation 19
Part 6 - Maintenance and Troubleshooting 20
Limited Warranty 22
Customer Installation Record Form 24