Slant/Fin VICTORY II VHS Series User manual

Subject to technical changes
Changes may be made without notice to the illustrations, process steps,
and technical data as a result of our policy of continuous improvement.
VSL II QUICK START GUIDE
DIRECT-VENT SEALED COMBUSTION CONDENSING BOILER
~ GAS-FIRED BOILER FOR NATURAL AND L.P. PROPANE GASES ~
This Quick Start Guide must be left
with owner and should be hung on or
adjacent to the boiler for reference.
This manual is only a quick reference guide and is not meant
to replace or supplement the installation and maintenance
manual supplied with the appliance. Before performing the
installation or any service read the installation and mainte-
nance instructions supplied with this boiler thoroughly!
In the Commonwealth of Massachusetts this boiler must
be installed by a licensed Plumber or Gas Fitter.
This manual must only be used by a licensed plumber, a
licensed gas fitter, the gas supplier, or a qualified service
technician/installer. Failure to comply could result in sub-
stantial property damage, severe personal injury, or loss
of life. Slant/fin is not liable for any damages or defects re-
sulting from improper installation or service of this boiler.
!
CAUTION
NOTICE
!
WARNING
The installation must comply with the requirements of the
authority having jurisdiction or, in the absence of such re-
quirements, to the latest edition of the National Fuel Gas
Code, ANSI Z223.1/NFPA 54. In Canada, installation must
be in accordance with the requirements of CAN/CSA
B149.1, Natural Gas and Propane Installation Code.
Where required by the authority having jurisdiction, the
installation must comply with the Standard for Controls
and Safety Devices for Automatically Fired Boilers,
ANSI/ASME CSD-1.
!
WARNING
IMPORTANT
READ ALL OF THE FOLLOWING WARNINGS AND STATEMENTS
BEFORE READING THE QUICK GUIDE INSTRUC
TIONS.
TABLE OF CONTENTS
CONTENTS............................................................PAGE
CLEARANCES .............................................................2
UNPACKING THE BOILER .......................................... 2
GAS TYPE SELECTION ..............................................3
MOUNTING THE BOILER ............................................3
GAS PIPING .................................................................3
WATER PIPING .........................................................3-4
CONDENSATE DISPOSAL ..........................................4
VENTING.......................................................................5
ELECTRICAL CONNECTIONS ....................................6
BOILER PROGRAMMING ............................................6
BOILER STARTUP & COMBUSTION ANALYSIS ........7

2Slant/Fin VSL II Quick Start Guide
Required Clearances
The boiler requires certain clearances to combustibles, ref-
erence the tables below to ensure the location selected is
suitable for installing the boiler. It is highly recommended
that the boiler be provided with adequate clearances for ease
of installation, service, and maintenance, these clearances
are referenced below
Figure 1. Service clearances
Minimum
Required
Clearances to
Combustibles
Recommended
Service
Clearances
Ceiling 212
Front 224
Rear 0 0
Left/Right side 2 4
Floor 212
Vent (first 3ft
from the boiler)*
1See vent
manufacturer
Vent (Beyond 3ft
from the boiler)*
1/4 See vent
manufacturer
Supply/Return piping 1/4 N/A
Unpacking the Boiler
The boiler is packaged with the following list of parts and fittings. Please inspect the contents of the
packaging and make sure everything on the list has been removed from the box before disposal.

Gas Type Selection
The boiler comes from the factory setup for natural gas. The
boiler comes with a conversion kit that must be used if the
boiler is to be installed and fired with propane gas. Instruc-
tions for the conversion of the boiler are located in the instal-
lation and maintenance manual.
Mounting the Boiler
The boiler bracket should be securely fixed to a wall that is
sufficiently strong enough to bear the weight of the boiler
when filled with water as well as the attached plumbing. The
boiler should not be used to support the plumbing system,
all piping attached to the boiler must be properly supported
with appropriate support brackets. Do not install the boiler
on drywall unless anchoring directly to the studs. Install the
boiler bracket to the wall with the provided mounting materi-
als. Ensure that it is level before hanging the boiler.
Gas Piping
The boiler gas piping must be sized to accommodate the full
load of the boiler in addition to all the other gas appliances
in the building. The boiler should be the first appliance con-
nected to the gas supply line. Never use a ½” corrugated
appliance adapter for connecting the boiler. If using propane
contact your propane supplier to size gas piping, tanks, and
100% lockup gas pressure regulator. Install a manual gas
shutoff valve below the boiler following all local and national
code.This valve should be a full port gas ball valve. Install a
drip leg/sediment trap as well as a union to facilitate servicing
of the unit. See the installation and maintenance manual for
complete instructions. The nominal natural gas pressure is
7” W.C. The nominal propane gas pressure is 11 W.C.
Water Piping
The heating system should be flushed before fitting the boiler
to the system, see the installation and maintenance manual
for system flushing instructions.
The boiler must be connected to the heating system utilizing
primary secondary piping to hydraulically separate it from
the system. Piping can be accomplished in two ways either
through the use of a Low Loss Header (LLH) or through
Closely Spaced Tees (CST). When using a low loss header
please refer to the header manufacturer for sizing and instal-
lation information. When using closely spaced Tees they
must be sized and pipe according to standard design prac-
tices based on the btu output of the boiler and the flow rate.
Follow the two piping illustrations below for valve and pump
placement. The PRV must be installed directly below the
boiler before any shutoff valves. Install unions as shown in
the drawing as well as ball valves for boiler isolation to allow
for service and maintenance of the boiler. Important:
Primary boiler loop piping must be a minimum diameter for
each model
VSL II-90: 1"
VSL II-150: 1" 1/4"
VSL II - 200: 1 1/4"
VSL II - 250: 1 1/2"
Primary Secondary Piping:
Primary secondary piping must be used at all times with this
boiler. Failure to properly size and install primary secondary
piping may cause damage to the boiler and void the war-
ranty. There are two standardized methods for primary sec-
ondary piping, the first is to use Closely Spaced Tees here
after referred to as CST. The second method is to use a third
party Low Loss Header also called a Hydraulic separator.
Slant/Fin VSL II Quick Start Guide 3
Figure 2. Mounting boiler Illustration
Figure 1. Service clearances
Gas shuto valve,
shown in open po-
sition
Appliance
Gas
Inlet
C

Option 1 Closely Spaced Tees Design
In order to properly design a CST system there are three
main rules:
The distance between the centerline of the two tees should
not be greater than four times the pipe diameter of the pri-
mary loop. Nor shall it exceed 12 inches.
The return side of the system entering the first tee must have
a minimum straight length before the first tee of eight times
the pipe diameter of the primary loop. This minimum shall
not be less than 8 inches.
The supply side of the system exiting the second tee must
have a minimum straight length after the second tee of four
times the pipe diameter of the primary loop. This minimum
shall not be less than 4 inches.
Option 2 Low Loss Header
The use of a third party prefabricated low loss header elim-
inates the need to field assemble and design primary sec-
ondary piping. If using a low loss header use the sizing
information of the manufacturer to correctly match its size to
the size of the boiler.
Condensate Disposal
The condensate from the boiler must be disposed of. Con-
nect the condensate drain on the bottom of the boiler to a
drain line, this line should be sloped down and away from
the boiler.
There must be an air gap between the drain line connected
to the bottom of the boiler and the drain connect to the build-
ings pumping.
A condensate pump may be required in some installations if
the boiler is lower than the drain.
A condensate neutralizer should be installed, but is not al-
ways required check local code.
Use materials approved by the authority having jurisdiction.
In absence of such authority, PVC and CPVC pipe must
comply with ASTM D1785, F441 or D2665. Cement and
primer must comply with ASTM D2564 or F493. For Canada,
use CSA or ULC certified PVC or CPVC pipe, fittings and
cement. Never use copper, galvanized, or black iron pipe to
drain the condensate. See the installation and maintenance
manual for complete instructions.
Drawing 1. LLH Drawing 2. CST
4Slant/Fin VSL II Quick Start Guide
Purging the boiler/primary loop
The boiler loop and boiler must be pruged of air before the
boiler is put into operation. The boiler can be purged of air
by running water through it in the same manner as a zone
is purged. When piping the boiler loop ensure there is way
to purge it with the necessary drain connections and shut-
off valves.

Slant/Fin VSL II Quick Start Guide 5
Venting Flue Exhaust and Combustion Air
This boiler may be vented in a number of different configura-
tions utilizing both direct vent sealed combustion venting sys-
tems and single pipe room air venting systems. All vent
material and configurations must be approved. See the in-
stallation and maintenance manual for complete instructions.
Below are examples of possible venting configurations. Ad-
ditional venting information can be found in the manual for
both direct vent and room air installations. Multiple venting
material options are available for use with the boiler including:
solid core PVC, CPVC, Polypropylene PP, and stainless stell.

6Slant/Fin VSL II Quick Start Guide
Electrical Connections
The boiler has both 24V and 120V terminal strips, pay spe-
cial attention to properly identify both types of wiring in the
system. The boiler has the ability to power and control three
separate pumps: boiler loop pump, DHW indirect tank pump,
and system pump. The boiler also utilizes an outdoor NTC
sensor as well as an indirect tank NTC sensor when control-
ling DHW production. These sensors are supplied with the
boiler. External alarm contacts as well as external safety de-
vices maybe connected to the boiler. A room thermostat or
TT connection from a zone valve/ pump relay control must
always be connected to the boiler to generate a call for heat.
Additional information about the wiring of the boiler and func-
tionality may be found in the installation and maintenance
manual supplied with the boiler.
System
Circulator
Boiler Programming
The boiler should always be programmed by the installer
during startup.The outdoor reset curve should be set as well
as the minimum and maximum water temperatures that cor-
respond to the type of heat emitters installed in the dwelling.
Complete programming information may be found in the in-
stallation and maintenance manual supplied with the boiler.
To enter the Installer’s Menu level for boiler programming fol-
low the steps outlined below.
1. Press and hold the RESET and buttons together
for 5 seconds until the icon is displayed, then release
both buttons.
2. Use the and buttons to move up and down
through the parameter list.
3. To change a parameter press the RESET button until the
parameter is flashing and then use the and
buttons to change the value.
4. Press and release the RESET button to store the value
of the changed parameter.
5. To exit the installer’s menu press and hold the RESET
button for 5 seconds until the icon is no longer visible.
The following list of parameters must be programmed at
startup of the boiler

Slant/Fin VSL II Quick Start Guide 7
Boiler Startup and Combustion Analysis
Before placing the boiler into service the combustion must
be properly adjusted. Setting the combustion requires a
combustion analyzer in working order that has been cali-
brated. A digital manometer should also be available for test-
ing incoming gas pressure. Once the boiler has had the
combustion set, a test report should be generated and left
with the boiler as proof of correct startup and for reference
for future maintenance. An explanation of complete com-
bustion analysis and start up procedures can be found in the
installation and maintenance manual supplied with the boiler.
The combustion analysis must be done by a qualified tech-
nician. Ensure there is a sufficient way to emit the heat gen-
erated by the boiler to allow for combustion testing, this can
be accomplished by creating a call for heat in all the zones
or if using an indirect tank by running the DHW at a faucet.
1. Enter the installers menu.
2. Scroll to parameter 2010 and set to High.
3.
Wait for the boiler to stabilize this may take a few minutes.
4. Insert the combustion analyzers probe into the test port
on the exhaust vent.
5. Wait till the readings stabilize and then check there
range against the table below.
6. If the combustion must be adjusted use a 2.5mm Allen
wrench to turn screw E on the gas valve. Turning the
screw clockwise will reduce the CO2 reading, while
turning the adjustment screw counter clockwise will
increase the C02 level. Turn the screw in quarter turn
increments waiting for the readings to stabilize between
each turn.
7. Once the reading on high fire matches the desired level
change parameter 2010 to Low.
8. Ensure that the reading at low fire match the range in
the table given below, if they fall outside the given range
contact technical support.
9. Set parameter 2010 to Off, close and seal the combus-
tion probe port. The commissioning of the boiler is now
complete.
Par. 2022
Par. 2024
Outdoor temperature (˚F)
Par. 2021
Par. 2023
Par. 2020
PARA
METER
DESCRIPTION
FACTORY
SETTINGS
2020 Warm Weather shutdown temperature 69˚F
2021
Design day temperature
outdoor temperature
14˚F
2022 Design day supply water temperature 176˚F
2023
Spring /Fall outdoor temperature corre-
sponding to parameter 2024
69˚F
2024 Minimum supply water temperature 110˚F
G
A
E
D
F
020017.01.016
Boiler
Model
CO2 at
High Fire
CO2 at
Low Fire
O2 at
High Fire
CO2 at
Low Fire
NG
8.6% - 8.9%
8.5 % - 9% 5.6% - 5.1% 5.8% - 4.8%
LP 9.6% - 9.8% 9.5% - 9.9% 6.3% - 6% 6.4% - 5.8%

8Slant/Fin VSL II Quick Start Guide
20˚F rT System
Boiler Model GPM Feet of Head Grundfos Model Taco Pump Model Wilo Model
90A 8 21.3 UPS26-99 (Speed 3) 0011 Star 30 F
150A 13 13 UPS26-99 (Speed 2) 0011 Star 17 FX
199A 18 28 UPS26-150 (Speed 3) 2450 Top-S 1.5x40
250A 22 NA NA NA NA
25˚F rT System
Boiler Model GPM Feet of Head Grundfos Model Taco Pump Model Wilo Model
90A 7 17 UPS26-99 (Speed 2) 0014 Star 30 F
150A 11 11 UPS26-99 (Speed 2) 0012 Star 17 FX
199A 14 19 UPS26-99 (Speed 3) 0013 Top-S 1.25x25
250A 18 28 UPS26-150 (Speed 3) 2450 Top-S 1.5x40
30˚F rT System
Boiler Model GPM Feet of Head Grundfos Model Taco Pump Model Wilo Model
90A 5 9 UPS15-58 (Speed 2) 008 Star 21 F
150A 9 7 UPS15-58 (Speed 3) 0010 Star 21 F
199A 12 15 UPS26-99 (Speed 2) 0011 Star 30 F
250A 15 22 UPS26-150 (Speed 2) 2450 Top-S 1.25x35
30˚F rT Boiler Loop with Glycol Pressure Drops
Boiler Model GPM Feet of Head 100% Water Feet of Head 30% Glycol Feet of Head 50% Glycol
90A 5 9 11 12
150A 9 7 8 10
199A 12 15 18 20
250A 15 22 26 30
Circulator Sizing Chart for Systems with Glycol
When sizing pressure drop through the boiler using glycol an additional 19% pressure drop will occur with a
30% glycol system and an additional 35% pressure drop will occur with a 50% glycol system. The maximum
amount of glycol used with the VSL II boiler must be limited to a concentration of 50%.

Slant/Fin VSL II Quick Start Guide 9
20˚F rT System
Boiler
Model GPM Feet of Head
Feet of Head 30 Gallon
Indirect Water Heater
Grundfos
Model
Taco pump
Model
90A 8 21.3 27.3 UPS43-100 (Speed 2) 0011
150A 13 13 19 UPS26-99 (Speed 3) 0011
199A 18 28 34 UPS26-150 (Speed 3) 2450
250A 22 NA NA NA NA
25˚F rT System
Boiler
Model GPM Feet of Head
Feet of Head 30 Gallon
Indirect Water Heater
Grundfos
Model
Taco pump
Model
90A 7 17 23 UPS26-99 (Speed 3) 0014
150A 11 11 17 UPS26-99 (Speed 3) 0012
199A 14 19 25 UPS26-150 (Speed 2) 0013
250A 18 28 34 UPS26-150 (Speed 2) 2450
30˚F rT System
Boiler
Model GPM Feet of Head
Feet of Head 30 Gallon
Indirect Water Heater
Grundfos
Model
Taco pump
Model
90A 5 9 15 UPS26-99 (Speed 1) 008
150A 9 7 13 UPS26-99 (Speed 2) 0010
199A 12 15 21 UPS26-99 (Speed 3) 0011
250A 15 22 28 UPS26-150 (Speed 3) 2450
30 Gallon Superstor Ultra Indirect Tank Pump Sizing

10 Slant/Fin VSL II Quick Start Guide
20˚F rT System
Boiler
Model GPM Feet of Head
Feet of Head 30 Gallon
Indirect Water Heater (7.9)
Grundfos
Model
Taco pump
Model
90A 8 21.3 29.2 UPS43-100 (Speed 3) 0011
150A 13 13 20.9 UPS26-99 (Speed 3) 0013
199A 18 28 35.9 UPS26-150 (Speed 3) 2400-50
250A 22 NA NA NA NA
25˚F rT System
Boiler
Model GPM Feet of Head
Feet of Head 30 Gallon
Indirect Water Heater (7.9)
Grundfos
Model
Taco pump
Model
90A 7 17 24.9 UPS26-99 (Speed 3) 0011
150A 11 11 18.9 UPS26-99 (Speed 3) 0011
199A 14 19 26.9 UPS26-150 (Speed 2) 2400-45
250A 18 28 35.9 UPS26-150 (Speed 2) 2400-50
30˚F rT System
Boiler
Model GPM Feet of Head
Feet of Head 30 Gallon
Indirect Water Heater (7.9)
Grundfos
Model
Taco pump
Model
90A 5 9 16.9 UPS26-99 (Speed 2) 0014
150A 9 7 14.9 UPS26-99 (Speed 2) 0014
199A 12 15 22.9 UPS26-99 (Speed 3) 0013
250A 15 22 29.9 UPS26-150 (Speed 3) 2400-45
40 and 60 Gallon Superstor Ultra Indirect Tank Pump Sizing

Slant/Fin VSL II Quick Start Guide 11
Gas input rate btuh
Static gas pressure in. W.C.
Dynamic gas pressure in. W.C.
Gas type
Central Heating supply temperature F
Central heating return temperature F
CO2 reading at high fire %
CO2 reading at low fire %
Ionization current μA
System water pressure psi
Has the system been properly flushed? Yes / No
If flushed what agent was used? Yes / No
Is there an inhibitor in the system? Yes / No
What inhibitor have been used? Yes / No
Is there glycol in the system? Yes / No
What percentage of glcyol? Yes / No
What brand and type of glycol? Yes / No
What is the pH of the fluid in the system? Yes / No
Has the boiler been programmed to match
the heating system it is paired with? Yes / No
Is the outdoor reset sensor installed? Yes / No
Is the boiler paired with an indirect tank? Yes / No
If paired with an indirect tank has a sensor
been installed and wire to the boiler control? Yes / No
Has the boiler been prgrammed for
DHW operation? Yes / No
Have all the venting joints been properly
sealed? Yes / No
Has a CO detector been installed? Yes / No
Has the piping system been tested for leaks? Yes / No
Commissioning Check List

©2015 Slant/Fin Corp. • Publication VSLII-QSG • Printed in U.S.A. 515
U.S.A.
Slant/Fin Corporation • 100 Forest Drive
Greenvale, NY 11548 • 516-484-2600
www.slantfin.com
Canada
Slant/Fin LTD/LTEE • 400 Ambassador Drive,
Mississauga, Ontario L5T 2J3 • 905-677-8400
www.slantfin.ca