
This manua l mus t be left wi th owner and s houl d be
hung on or adjacent to the boiler f or r efer enc e.
MODELS VGH-299-CH, VGH-399-CH
and VGH-500-CH
HIGH EFFICIENCY CONDENSING GAS BOILER
CH - USER’S INFORMATION MANUAL
59.0 °F
70.0 °F
QUICK CONTENTS
1.0 SAFET Y GUIDELINE S ....................................................................... 4
2.0 INTRODUCTION . ............................................................................... 6
3.0 DISPLAY AND BUTT O NS ...................................................................... 8
4.0 STARTING THE BOILER .................................... ......................... ....... 9
5.0 THE MENU (BUT T ON) ......................................................................... 11
WARNING:
If the information in this man-
ual is not followed exactly, a
fire or explosion may result
causing proper ty damage,
personal injury or loss of life.
- Do not store or use gasoline
FULL TABLE OF CONTENTS ................................................................ 2
- WHAT TO DO IF YOU SMELL GAS
•
Do not try to light any appliance.
•
Do not touch any electrical switch; do not use any
phone in your building.
•
Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions
•
If you cannot reach your gas supplier, call the fire department.
or other flammable vapors
and liquids in the vicinity of
this or any other appliance.
- Installation and service must be performed by a qualified installer, service agency or the gas supplier.
California Proposition 65 Warning:
This product contains chemicals known to the State of California to cause cancer, birth defects,
or other reproductive harm.
E95.1601EN032
Slant/Fin Cor p. 2018 • 1218 • PUBLICATION VGH-CH-40

TABLE OF CONTENTS
1
SAFETY GUIDELINES, ...................................................................................................................... 4
2INTRODUCTION ................................................................................................................................ 6
2.1
E
XPLANATIONS
2.2
M
AINTENANCE AND INSPECTION
On a Continuous basis ........................................................................................... .... 6
On a Monthly basis ..................................................................................................... 6
On an Annual basis (every 12 months) .......................................................... ............. 7
2.3
F
OR INSTALLATIONS IN THE COMMONWEALTH OF MASSACHUSETTS
3Display and buttons ......................................................................................................................... 8
3.1
D
ISPLAY ICONS
4Starting the boiler. ....................................................... ..................................................................... 9
4.1
C
HANGING THE SETPOINT AND/OR ENABLING
Changing the Central Heating setpoint directly. ........................................................ 10
Changing the DHW setpoint directly. ........................ ................................................ 10
Enable / Disable CH or DHW control. .............. ..... ......... .... ..... ......... ..... .... .......... .... .. 10
5The MENU (Button). ................................................. .... .......... ..... .... ......... ..... ......... ..... .... ................ 11
5.1
P
ASSWORD
5.2
L
ANGUAGE SETTING
5.3
A
VAILABLE MENU ITEMS
Central Heating (CH) .................... .......... .... ......... ..... ..... ......... ..... ......... ..... .... ......... .. 12
Domestic Hot Water (DHW) ...................................................................................... 12
Information................................................................................................................ 12
Software Versions ..................................................................................... ............... 12
Boiler Status ........................................................ ..................................................... 12
Boiler History ............................................................................................................ 12
Error log ............................................. ..... ......... ..... ......... .... ..... ......... ..... ......... ..... ...... 12
Service ..................................................................................................................... 13
Settings .................................................................................................................... 13
General Settings ............................................................ ........................................... 13
Language ................................................................................................................. 13
Unit Type .................................................................................................................. 13
Date & Time .............................................................................................................. 13
Time zone settings.................................................................................................. .. 13
Display settings .................................................................................... .................... 13
Cascade mode ......................................................................................................... 14
Other Settings ........................................................................................................... 14
Boiler settings ....................................................................................... .................... 14
5.4
B
OILER HISTORY
5.5
E
RROR LOGGING
5.6
S
ERVICE REMINDER
5.7
S
YSTEM TEST
. ...................................................................................................................... 6
............................................................................................... 6
. ........................................... 7
....................................................................................................................... 8
CH/DHW. ............................................................ 9
.......................................................................................................................... 11
.............................................................................................................. 11
........................................................................................................ 11
................................................................................................................... 14
................................................................................................................... 14
.............................................................................................................. 15
....................................................................................................................... 15
2
E95.1601EN032 VGH-CH user manual

IMPORTANT
READ ALL OF THE FOLLOWING WARNINGS AND STATEMENTS BEFO RE READING
THE INSTALLATION INSTRUCTIONS
Danger Sign: indicates the presence of an imminently hazardous situation that will cause
death, serious personal in
or substantial property damage.
DANGER
WARNING
Warning Sign: indicates the presence of a hazardous situation which can cause death, serious personal injury or substantial property damage.
CAUTION
Caution Sign plus Safety Alert Symbol: indicates a hazardous situation which will or can
cause minor or moderate personal injury or property damage.
CAUTION
Caution Sign plus a lightning bolt: indicates the risk of electric shock and the potential of
hazards due to electric shock.
NOTICE
Notice Sign: indicates special instructions on installation, operation or maintenance that are
important but not related to personal injury or property damage.
WARNING
This Boiler must be installed by a licensed and trained Heating Tec h nician or the Warr anty
is void. Failure to properly install this unit may result in property damage, serious injury to
occupants, or possibl
death.
E95.1601EN032 VGH-CH user manual
3

CAUTION
This boiler is equipped wit h a pressure s witch in the even t of a blocked v ent the boiler
will lockout. No attempt by the user/owner may be made to put the boiler back intro
operation. A qualified service technican must be notified of the issue. The boiler may
only be reset by a qualified service technican after they have diagnosed and corrected
the issued that caused the safety lockout of the boiler.
DANGER
NOTICE
WARNING
WARNING
“Should overheating occur or the gas supply fail to shut off, do not turn off or disconnect
the electrical supply to the circulator. Instead, shut off the ga s supply at a location external
to the appliance.”
Slantfin recommends the installation of a carbon monoxide detector in the boiler room for
all installations.
WARNING: There are no user serviceable parts on this boiler. Warranty does not cover
defects caused by attempts to service this boiler by someone other than a qualified gas
service technician. These attempts could cause property damage, personal injury or loss
of life.
WARNING: Improper installation, adjustment, alteration, service or maintenance can
cause property damage, personal injury (exposure to hazardous materials) * or loss of
life. Installation and service must be performed by a qualified installer, service agency or
the gas supplier (who must read and follow the supplied instructions before installing,
servicing, or removing this boiler. This boiler contains materials that have been identified
as carcinogenic, or possibly carcinogenic, to humans)
Do not use this boiler if any part has been under water. Immediately call a qualified ser-
DANGER
WARNING
vice technician to inspect the boiler and to replace any part of the co ntrol system and any
gas control which has been under water
WARNING: Crystalline Silica - Certain components in the combustion chamber may
contain this potential carcinogen. Improper installation, adjustment, alteration, service or
maintenance can c aus e prop ert y dam age, s erio us in jury ( expos ure to haz ard ous mate rials) or death. Refer to Section 19 for information on handling instructions and recommended personal protective equipment. Installation and service must be performed by a
qualified installer, service agency or the gas supplier (who must read and follow the supplied instructions before installing, servicing, or removing this boiler. This boiler contains
materials that have been identified as carcinogenic, or possibly carcinogenic, to humans).
E95.1601EN032 VGH-CH user manual
5