HTP CGH-199*, Руководство по установке

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LP-644 Rev. 8.10.17
4
Table of Contents
Part 1 - General Safety Information 4
A. Operation and Installation Warnings 4
B. Improper Combustion 6
C. Gas 6
D. When Servicing the Water Heating System 6
E. Water Chemistry Requirements 6
F. Freeze Protection 6
G. Water Temperature Adjustment and Scalding 7
H. High Elevation Installations 7
Part 2 - Before You Start 8
A. What’s in the Box 8
B. Optional Equipment 8
Part 3 - Prepare the Water Heater Installation 9
A. Locating the Water Heater 9
B. Leveling 10
C. Clearances for Service Access 10
D. Residential Garage and Closet Installations 10
E. Exhaust Vent and Intake Pipe 10
1. Direct Vent of Exhaust and Intake 11
2. Power Venting, Indoor Combustion Air in Confined or Unconfined Space
11
F. Carbon Monoxide Detectors 11
G. Prevent Combustion Air Contamination 11
H. Removing a Heater from a Common Vent System 12
I. Technical Specifications 13
J. Wall-Mounting 17
Part 4 - Water Piping 18
A. General Plumbing Guidelines 18
B. Backflow Preventer 18
C. Potable Expansion Tank 18
D. Piping the Water Heater 18
E. Applications 19
F. Circulator Sizing 23
G. Pressure Relief Valve 23
H. Filling the Heater 24
Part 5 - Venting 24
A. General 24
B. Approved Materials for Exhaust Vent and Intake Pipe 25
C. Additional Requirements for Installation in Canada 26
D. Exhaust Vent and Intake Pipe Location 27
E. Exhaust Vent and Intake Pipe Sizing 28
F. Tightening Water Heater Collar to Exhaust Vent and Intake Pipe 28
G. Exhaust Vent and Intake Pipe Installation 28
H. Applications 29
1. Direct Vent Installation of Exhaust and Intake 29
2. Venting Through an Existing System 32
3. Power Venting, Indoor Combustion Air in Confined or Unconfined Space
33
I. Common Vent Piping 34
1. Vent Diameter Sizing and Lengths 34
2. Recommended Exhaust Pipe Transitions 35
3. Two (2) Pipe Common Direct Vent Systems 35
Part 6 - Installing the Condensate Drain 37
Part 7 - Connecting Electrical Service 38
A. Wiring 38
B. Dip Switches 38
C. Wiring a Cascaded System 39
Part 8 - Gas Connections 43
A. Gas Pipe Sizing Tables 43
1. Gas Pipe Sizing 43
2. Natural Gas Pipe Sizing 43
3. LP (Liquid Propane) Gas Pipe Sizing 44
B. Gas Connection Requirements 44
C. Additional Precaution for Excess Flow Valve (EFV) 44
D. Checking Gas Pressure at the Water Heater for Proper Operation
44
E. Setting and Verifying the Combustion Setting 44
Part 9 - Controls 45
A. Control and Display Overviews 45
B. Start-Up Sequence 46
C. Changing the DHW Set-Point 46
D. Changing the Time 46
E. Status Display 47
F. Installer Mode 48
G. Setting Up a Cascaded System 49
H. 0-10 Volt Input 50
Part 10 - Troubleshooting 51
A. Error Code 51
B. Error Tree Analysis 54
1. Flame Detection 54
2. Air Pressure Switch Detection 54
3. Inlet / DHW / Operating Temperature / Exhaust Sensors 55
C. Suggested Corrective Actions 55
Part 11 - Start-Up 56
A. Check / Control Water Chemistry 56
B. Check for Gas Leaks 57
C. Fill and Test Water System 57
D. Condensate Removal 57
Part 12 - Installation Checklist 58
Part 13 - Maintenance 60
Part 14 - Replacement Parts 63
Limited Warranty for CGH-199 Water Heaters 67
Notes 69
Customer Installation Record Form 70
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, 3” left and right sides, 18” top, 12” bottom, and 0” back are
minimum recommended service clearances. (A combustible door
or removable panel is acceptable front clearance. A 3” minimum
clearance must be provided from the appliance front cover to the
removable panel or combustible door.) 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. The appliance
is rated Category IV (pressurized vent, likely to form condensate in
the vent) and requires a special vent system designed for pressurized
venting. Use only Category IV vent systems.
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 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 fire rated assembly.
A. Operation and Installation Warnings
To avoid serious injury or death, read, understand, and follow all of
the precautions listed here.