2
The following terms are used throughout this manual to bring attention to the presence of hazards of various
risk levels, or to important information concerning product life.
DANGER
Indicates an imminently hazardous situation
which, if not avoided, will result in death, serious
injury or substantial property damage.
CAUTION
Indicates a potentially hazardous situation which,
if not avoided, may result in moderate or minor
injury or property damage.
WARNING
Indicates a potentially hazardous situation which,
if not avoided, could result in death, serious injury
or substantial property damage.
NOTICE
Indicates special instructions on installation,
operation, or maintenance which are important
but not related to personal injury hazards.
Table 1A: Ratings
Boiler Model
Supply NPT
(inch)
Return NPT
(inch)
Vent (inch) Gas NPT (inch)
Relief Valve
NPT (inch)
Drain
NPT (inch)
HG02
1¼
1¼
4
½
¾
¾
HG03
1¼
1¼
4
½
¾
¾
HG04
1¼
1¼
5
½
¾
¾
HG05
1¼
1¼
6
½
¾
¾
HG06
1¼
1¼
6
½
¾
¾
Table 1B: Dimensions and Connections
Heritage Gas Ratings
Boiler Model
Input (MBH)
DOE Heating Capacity (MBH)
Net AHRI Rating Water (MBH)
(1)
AFUE (%)
HG02
37.5
30
26
82
HG03
62
50
44
82
HG04
96
78
68
82
HG05
130
106
92
82
HG06
164
134
116
82
(1)
Net AHRI Water Ratings shown are based on a piping and pickup allowance of 1.15. Consult manufacturer before selecting
boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping
systems, etc.
The City of New York requires a Licensed Master Plumber supervise the installation of this product.
The Massachusetts Board of Plumbers and Gas Fitters has approved the Heritage™ Series Boiler. See the Massachusetts Board of
Plumbers and Gas Fitters website,
http://license.reg.state.ma.us/pubLic/pl_products/pb_pre_form.asp
for the latest Approval
Code or ask your local Sales Representative.
The Commonwealth of Massachusetts requires this product to be installed by a licensed Plumber or Gas fitter.
Table of Contents
I. Pre-Installation ....................................4
II. Unpack Boiler .....................................5
III. Water Piping and Trim ........................6
IV. Gas Piping ...........................................9
V. Venting ..............................................10
VI. Electrical ............................................12
VII. System Start-up and Checkout ..........15
VIII. Operation ..........................................17
IX. Service and Maintenance ...................19
X. Troubleshooting ................................22
XI. Repair Parts .......................................24
Electrical Requirements: 120VAC, 60 Hz, 1-ph, 15A
Maximum Allowable Working Pressure - 50 psi. Boiler shipped from factory with a 30 psi relief valve.
