New Buck Corporation DV23ZC User manual

OPERATIONS MANUAL FOR THE MODEL DV23ZC
DIRECT VENT ZERO CLEARANCE GAS FIREPLACE
APPROVED FOR MOBILE HOME INSTALLATION
WARNING: If the following information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury, or loss of life.
-DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND
LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
-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 the gas supplier, call the fire department.
-Installation and service must be performed by a qualified installer, service agency, or the gas
supplier.
-Save this manual for future reference.
New Buck Corporation Revised Aug/2008
P.O. Box 69
200 Ethan Allen Drive
Spruce Pine, NC 28777

TABLE OF CONTENTS
Introduction..........................................................................................................................3
Specifications.......................................................................................................................3
Installation ...........................................................................................................................5
Location and Clearance .......................................................................................................5
Assembly Steps-Overview...................................................................................................5
Appliance and Framing Dimensions ...................................................................................6
Exterior Vent Locations and Restrictions............................................................................9
Minimum-Maximum Vent Length Requirement...............................................................10
Vent Assembly...................................................................................................................11
Horizontal Termination .....................................................................................................11
Vertical Termination..........................................................................................................14
High Altitude .....................................................................................................................17
Gas Valve Connection .......................................................................................................18
Gas Pressure Checks..........................................................................................................18
Operating Instructions .......................................................................................................19
Lighting Instructions..........................................................................................................19
Shut Off Procedure ........................................................................................................... 21
Log Installation..................................................................................................................22
Pilot and Flame ..................................................................................................................23
Glass Door Installation ......................................................................................................23
Wiring Diagrams ...............................................................................................................24
Accessories or Options ......................................................................................................25
Maintenance.......................................................................................................................26
General Maintenance .........................................................................................................26
Replacement Parts .............................................................................................................27
Warranty ............................................................................................................................30
1

2

INTRODUCTION
This instruction manual will help you obtain a safe, efficient, dependable installation for your appliance
and vent system. Please read and understand these instructions before beginning your installation.
The model DV23ZC is a sealed combustion, air circulating gas appliance designed for residential and
mobile home applications. The appliance must be installed with Dura-Vent GS vent system that is
routed to outside atmosphere. It is also listed for bedroom installations.
This appliance is designed to operate on natural or propane gas. A millivolt gas control valve with piezo
ignition system provides safe, efficient operation. No external electrical power is required to operate the
gas valve and burner. 120VAC is required to operate the room air fan.
This appliance complies with National Safety Standards and is tested and listed by (ITS) Intertek Testing
Services (Warnock Hersey) to ANSI Z21.88-2002 and CSA 2.33-2002 ISA CAN/CGA-2.17-M91-
Appliance for use at high altitudes. Installation must conform to local codes. In the absence of local
codes, installation must comply with the current National Fuel Gas Code, ANSI Z223.1/NFPA54..
(In Canada, installation must comply with the current CAN-1B149 installation code.)
Approved for manufactured (Mobile) home installation. For mobile housing, Title 24 CFR, Part
3280 or when such a standard is not applicable, the standard for manufactured home installation, ANSI /
NCBS A225.1 or standard for gas equipped recreation vehicles and mobile housing, CSA Z240.4.
DO NOT ATTEMPT TO ALTER OR MODIFY THE CONSTRUCTION OF THE
APPLIANCE OR ITS COMPONENTS. ANY MODIFICATION OR ALTERATION
MAY VOID THE WARRANTY, CERTIFICATION AND LISTINGS OF THIS UNIT.
SPECIFICATIONS - MODEL DV23ZC
GAS: NAT. L.P.
HIGH FIRE 22,000 BTU 22,000 BTU
LOW FIRE 14,000 BTU 17,600 BTU
GAS INLET PRESSURE: NAT. L.P.
MAX. INPUT 10.5" W.C. 14.0" W.C.
MIN. INPUT *5.0" W.C. 10.5" W.C.
*5.0" W.C. is minimum inlet gas supply pressure for the purpose of input adjustment.
MANIFOLD PRESSURE: NAT. L.P.
3.5" W.C. 10.0" W.C.
STEADY STATE EFFICIENCY:
NATURAL GAS 77.10%
L.P. GAS 77.10%
FLUE VENT 4" INNER, 6" OUTER; DURA-VENT MODEL GS
SAFETY AGA CERTIFIED PILOT GENERATOR, MILLIVOLT
SYSTEM ACTIVATED WITH SWITCH OR THERMOSTAT.
3

NOTE: Installation and repair should be performed by a qualified service person. The
appliance should be inspected annually by a qualified professional service person. More
frequent inspections and cleanings may be required due to excessive lint from carpeting,
bedding material, pet hair, etc. It is imperative that the control compartment, burners and
circulating air passage ways of the appliance be kept clean.
Provide adequate clearances around air openings and adequate accessibility clearance for
service and proper operation. Never obstruct the front openings of the appliance.
This appliance is designed to operate on natural or propane gas only. The use of other fuels or
combination of fuels will degrade the performance of this system. The gas input of this
appliance is 22,000 BTU/HR for natural gas and 22,000 BTU/HR for propane gas models.
Children and adults should be alerted to the hazards of high surface temperatures and
should stay away to avoid burns or clothing ignition. Young children should be carefully
supervised when they are in the same room as the appliance. Clothing or other flammable
material should not be placed on or near the appliance.
Any safety screen or guard removed for servicing this appliance must be replaced prior to
operating the appliance.
WARNING
Do not operate with the glass door removed, cracked, or broken. Replacement of the glass
should be done by a licensed or qualified service person.
Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any parts of the control system and any gas
controls which have been under water.
Minimum inlet gas pressure is 5" Water Column for natural gas and 10.5" Water Column for
propane for the purpose of input adjustment.
Maximum inlet gas supply pressure is 10.5" Water Column for natural gas and 14" Water
Column for propane.
The appliance must be isolated from the gas supply piping system (by closing its individual
manual shut-off valve) during any pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 psig (3.5kPa).
This appliance and its individual shut-off valve must be disconnected from the gas supply
piping system during any pressure testing of that system at pressures in excess of 1/2 psig
(3.5kPa).
4

GENERAL INFORMATION
LOCATION AND CLEARANCE
Make sure your installation location provides adequate combustion and ventilation air.
In selecting the location, the aesthetic and functional uses of the appliance are primary concerns.
However, vent system routing to the exterior and access to the fuel supply are also important.
Consideration should be given to traffic ways, furniture, draperies, etc., due to elevated surface
temperatures. The location should also be free of electrical, plumbing or other heating/air con-
ditioning ducts. Be sure to maintain adequate clearances around air openings into combustion
chamber.
The appliance should be mounted on a fully supported base extending the full width and depth
of the unit. The appliance may be located on or near conventional construction materials.
However, if installed on combustible materials, such as carpeting, vinyl tile, etc., a metal or
wood barrier covering the entire bottom surface must be used.
Right and left sides of the unit are determined when standing in front of the unit.
Minimum clearance to combustibles: sides and back - 0", floor - 0" , adjacent wall to Front -
6".
Minimum clearance to combustibles for the vent system is 2" when passing through a wall or
chase.
ASSEMBLY STEPS—OVERVIEW
The typical sequence of installation follows. However, each installation is unique resulting in
variations to those described.
1. Construct framing and position the appliance.
2. Route gas supply line and bring in electrical service line to appliance location.
3. Install vent system.
4. Make connection to gas supply and electrical service.
5. Install the log assembly.
6. Install the remote thermostat (optional).
7. Test fire the burner.
8. Install glass panel.
9. Finish enclosure walls and trim.
5

INSTALLATION
Figure 1
6

INTERIOR VERTICAL
INSTALLATION WITH
A MAXI MUM 42' RISE.
NOTE:
INTERIOR HORIZONTAL
MINIMUM INSTALLATION
NOTE:
Figure 2
NOTE: You may replace or
cover this piece of material with a
more decorative non-combustible
material when the unit is installed. SUPPLIED BY MANUFACTURER
SUPPLIED BY MANUFACTURER
*
*
*
7

8
INSTALLATION
GENERAL INFORMATION
Remove the shipping carton. Make sure the unit is not damaged. Lift the top louver and remove
three (3) nuts at the upper left, right, and center of the glass frame. Also, open louver at bottom
and remove the three (3) nuts. Set the door aside and protect from inadvertent damage. Retain
nuts for reassembly. Next, carefully remove the box of logs inside the appliance and set these
aside.
1. Framing - Maintain dimensions for the appliance enclosure as illustrated in Figure 1.
2. Gas Supply - These units are equipped with pipe supply access holes at the right side and
right rear facing unit.
3. Position appliance into framing - DO NOT secure with nails at the nailing tabs at top front
corners until venting installation is complete.
4. Vent system — NOTE: (The Model No. DV23ZC must be vented using the Simpson-Dura-
Vent Direct Vent Gas 4" inside 6" venting system.) All warranties will be voided and
serious fire, health, or other safety hazards may result from any of the following actions:
Installation of any damaged components not manufactured or approved by Simpson-Dura-
Vent; failure to meet all clearance requirements; failure to properly twist-lock and seal all
components.
Each section of Dura-Vent-GS flue system must be properly sealed to prevent the possibility of
leakage. This is accomplished by using high temperature silicone sealant. Apply a bead of
sealant around the bell section of the inner pipe prior to joining the pieces together. The outer
pipe joint may be sealed with metal foil tape or with silicone sealant.
WARNING
Always maintain required clearances (air spaces) to combustibles to prevent a fire hazard. Do
not fill air spaces with insulation. Check installation instructions for minimum clearance
requirements between the outer walls of the vent pipe and nearby combustible surfaces. Be sure
to check the vent termination clearance requirements from decks, windows, soffits, gas
regulators, air supply inlets, and public walkways, as specified in these installation instructions
and local building codes. (See page 9.) The gas appliance and vent system must be vented
directly to the outside of the building, and never attached to a chimney serving separate solid
fuel or gas burning appliances. Each direct vent gas appliance must have its own separate vent
system. Common vent systems are prohibited.
5. Remote Wall Switch or Thermostat or Remote Control - This appliance can be switched on
or off using one of several devices: 1). Appliance ON/OFF switch, 2) Wall Mounted Remote
Wall Switch, 3) Remote Wall Thermostat, or 4) Wireless Remote Control.
6. Connecting gas line — make gas line connections. All codes require a shut-off valve
mounted in the supply line. See Figure 15.
The flex line method is acceptable in the United States. However, Canadian requirements vary
depending upon locality. Installation must be in compliance with local codes.

INSTALLATION
EXTERIOR VENT LOCATIONS and RESTRICTIONS
M
VKA
V
B
V
C
B
OPENABLE
FIXED
CLOSED
FIXED
CLOSED
V
E
V
V
F
OPENABLE
B V A
J
B
D
LB
A
H
I
V
A
G
INSIDE CORNER DETAIL
V
= VENT TERMINAL
A
= AIR SUPPLY INLET = AREA WHERE TERMINAL IS NOT PERMITTED
TERMINATION BOX, LOCATION CHART
A. Clearance above grade, veranda, porch, deck, or
balcony (*12 inches (30cm) minimum)
B. Clearance to window or door that may be opened
(*12 inches (30cm) minimum.)
C. Clearance to permanently closed window
(minimum 12 inches (30 cm)) recommended to
prevent condensation on window.
D. Vertical clearance to ventilated soffit located
above the terminal within a horizontal distance of 24
inches (60cm) from the center-line of the terminal (18
inches (46cm) minimum.)
E. Clearance to unvented soffit (12 inches (30cm)
minimum.)
F. Clearance to outside corner - 6 inches (15 cm)
G. Clearance to inside corner - 12 inches (30 cm)
H. *Not to be installed above a meter regulator
assembly within 3 feet (90 cm) horizontally from the
centerline of the regulator.
I. Clearance to service regulator vent outlet (*6 feet
(1.8 m) minimum.)
J. Clearance to non-mechanical air supply inlet to
building or the combustion air inlet to any other
appliance (*12 inches (30 cm) minimum.)
K. Clearance to a mechanical air supply inlet (*6 feet
(1.8 m) minimum.)
L. Clearance above paved sidewalk or a paved
driveway located on public property (*7 feet (2.1m)
minimum).
M. Clearance under veranda, porch, deck, or balcony,
(*12 inches (30 cm) minimum).
A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family
dwellings and serves both dwellings.
As specified in “M” above, only permitted if verandas, porches, decks, or balconies are fully open a minimum of
two sides beneath the floor.
*As specified in CGA B1:19 Installation Codes (1991). NOTE: Local codes or regulations may require different
clearances.
9

INSTALLATION
NOTE:
Direct-Vent (Balanced Flue) appliances are sensitive to vent configurations. Although this
appliance may operate in some installations that fall outside this vent requirement chart,
we cannot ensure its performance.
Figure 3
18'
12'
0'
6'
MINIMUM - MAXIMUM VENT REQUIREMENTS
* MINIMUM DISTANCE FROM
BEND OF 45° ELBOW TO FACE
OF VENT CAP.
18'
6'
* MIN.
0'
6'
VENTING MUST BE
TERMINATED WITHIN
SHADED AREA
4' MAX.
12' 12'
42' 42'
10

INSTALLATION
VENT ASSEMBLY
There are two basic types of installations approved with your model DV23ZC appliance.
These are: Horizontal termination (See Figure 5)
Vertical termination (See Figure 10)
When planning your installation, refer to Figure 3 to ensure the length of your vent falls into the
limits specified in Figure 3. Also consult page 9, “Exterior Vent Locations and Restrictions”
regarding the placement of the vent terminal.
HORIZONTAL TERMINATION
1. Set the gas appliance in its desired location. Check to determine if wall studs or roof rafters
are in the way when the venting system is attached. If this is the case, you may want to
adjust the location of the appliance.
2. Dura-Vent pipe and fittings are designed with special twist-lock connections. Assemble the
desired combination of pipe and elbows to the appliance adapter with pipe seams oriented
towards the wall or floor, as much out of view as possible.
3. Use only Dura-Vent #985 horizontal termination (wind cap).
Figure 4 Figure 5
NOTE:
Twist-lock procedure: Four indentations, located on the female ends of pipes and
fittings, are designed to slide straight onto the male ends of adjacent pipes and fittings, by
orienting the four pipe indentations so they match and sliding into the four entry slots on the
male ends (Figure 4). Push the pipe sections completely together, then twist-lock one section
clockwise approximately one-quarter turn, until the two sections are fully locked.
Horizontal runs of vent must be supported every three feet. Wall straps are available for
this purpose.
MALE LOCKING
SOCKET
FEMALE LOCK-
ING SOCKET
11

INSTALLATION
HORIZONTAL TERMINATION (continued)
NOTE:
The horizontal run of vent must be level, or have a 1/4-inch rise for every 1 foot of run
toward the termination. Never allow the vent to run downward. This could cause high
temperatures and may present the possibility of a fire.
A 2" clearance (airspace) MUST be maintained on all vent pipe.
4. With the pipe attached to the appliance adapter, slide the appliance into its correct location,
and mark the wall for a 10" x 10" square hole. The center of the square hole should line up
with the centerline of the horizontal pipe as shown in Figure 6. Cut and frame the 10"
square hole in the exterior wall where the vent will be terminated. If the wall being
penetrated is constructed of non-combustible material, e.g., masonry block or concrete, a 9"
diameter hole is acceptable.
5. Position the horizontal vent termination in the center of the 10" square hole, and attach to
the exterior wall with the four wood screws provided. Before attaching the Vent
Termination to the exterior wall, run a bead of non-hardening mastic around its outside
edges, so as to make a seal between it and the wall. (See Figure 7.) The arrow on the vent
cap should point up. (See Figure 6.) NOTE: Ensure that proper clearances to combustible
materials are maintained.
Figure 6
Wood Screws
Apply Mastic to
All Four Sides
Vent Cap
10”
(254 mm)
10”
(254 mm)
Vent Opening
Combustible
Wall
Vent Opening Noncombustible Wall
7 1/2”
(190mm)
12

INSTALLATION
HORIZONTAL TERMINATION (continued)
Note:
The four wood screws provided should be replaced with appropriate fasteners for stucco,
brick, concrete, or other types of siding.
Venting termination shall not be recessed into a wall or siding. For structures with vinyl
siding, a Vinyl Siding Standoff (Part 950) should be installed between the vent cap and the
exterior wall. (See Figure 7.) Attach the Vinyl Siding Standoff to the Horizontal Vent
Termination. The Vinyl Siding Standoff prevents excessive heat from possibly melting the
vinyl siding material.
Figure7 Figure8
6. Before connecting the horizontal run of vent pipe to the vent termination, slide the black
decorative wall thimble cover over the vent pipe.
7. Slide the appliance and vent assembly toward the wall, carefully inserting the vent pipe into
the vent cap assembly. It is important that the vent pipe extend into the vent cap a sufficient
distance so as to result in a minimum pipe overlap of 1 1/4". Secure the connection between
the vent pipe and the vent cap assembly into the outer wall of the vent pipe. Use two sheet
metal screws provided to connect the straps to the Pipe Section. (See Figure 8.)
Cut Vinyl Sid-
ing Away to Fit
Standoff
Standoff
Wood
Screws
Nut
Apply Mas-
tic to All
Four Sides
Bolt
Vent
Cap
Installing Vinyl Siding Standoff
Interior Wall Surface
Decorative
Wall Thimble
Wall Thimble Screw
Horizontal
Vent Pipe
Vent Cap
(Horizontal
Termination)
Connecting Vent Cap with Horizontal
Vent Pipe
13

INSTALLATION
VERTICAL TERMINATION
1. Set the gas appliance in the desired location. Drop a plumb bob down from the ceiling to
the position of the appliance flue exit, and mark the location where the vent will penetrate
the ceiling. Drill a small hole at this point. Next, drop a plumb bob from the roof to the hole
previously drilled in the ceiling, and mark the spot where the vent will penetrate the roof.
Determine if the ceiling joists, roof rafters or other framing will obstruct the venting system.
You may wish to relocate the appliance or to offset it as shown in Figure 9, to avoid cutting
load bearing members.
2. If an offset is necessary in the attic to avoid obstructions, it is important to support the vent
pipe every 3 feet, to avoid excessive stress on the elbows, and possible joint separation.
Wall straps are available for this purpose (Figure 9).
Figure 9 Figure 10
3. Assemble the desired lengths of pipe and elbows necessary to reach from the appliance
adapter up through the Round Support Box. Ensure that all pipe and elbow connections are
in their fully twist-locked position. (See Figure 10.)
4. Cut a hole in the roof centered on the small drilled hole made in the roof in Step 1. The hole
should be of sufficient size to meet the 2" requirements for clearance to combustibles.
Continue to assemble lengths of pipe and elbows necessary to reach from the Ceiling
Support Box up through the roof line. Galvanized pipe and elbows may be utilized in the
attic, as well as above the roof line. The galvanized finish is desirable above the roof line
due to its higher corrosion resistance.
NOTES:
Maintain 2" minimum clearance.
To install the Round Support Box/Wall Thimble in a flat ceiling, cut a 10" square hole in the
ceiling centered on the hole drilled in step 1 above. Frame the hole as shown in Figure 11.
Roof Flashing
Wall Strap
45 Deg.
Elbow
Ceiling Firestop
Offset with Wall Strap and 45 deg Elbows
If area above is a not a room, install firestop above framed hole.
If area above is not a room, install firestop below framed hole.
Installing Firestop
Vertical Termination Cap
Storm Collar
14

INSTALLATION
VERTICAL TERMINATION (continued)
5. Slip the flashing over the Pipe Section(s) protruding through the roof. Secure the base of the
Flashing to the roof with roofing nails. Ensure the roofing materials overlap the top edge of
the Flashing as shown in Figure 12. Verify that you have at least the minimum clearance to
combustibles at the roof line.
Figure 12
6. Continue to add Pipe Sections until the height of the Vent Cap meets the minimum building
code requirements described in Figure 13. Note that for steep roof pitches, the vent height
must be increased. High wind conditions, nearby trees, adjoining roof lines, steep pitched
roofs, and other factors can result in poor draft, or down drafting. In these cases, increasing
the vent height may solve this problem.
Figure 13
7. Twist-lock the vent cap.
ROOF PITCH
FLAT TO 7/12
OVER 7/12 TO 8/12
OVER 8/12 TO 9/12
OVER 9/12 TO 10/12
OVER 10/12 TO 11/12
OVER 11/12 TO 12/12
OVER 12/12 TO 14/12
OVER 14/12 TO 16/12
OVER 16/12 TO 18/12
OVER 18/12 TO 20/12
OVER 20/12 TO 21/12
1
1.5
2
2.5
3.25
4
5
6
7
7.5
8
0.30
0.46
0.61
0.76
0.99
1.22
1.52
1.83
2.13
2.20
2.44
MIN. HEIGHT
FEET METERS
15

INSTALLATION
VERTICAL TERMINATION (continued)
NOTES:
Use only 45 degree elbows. Use of 90 degree elbows is not allowed in vertical terminations.
The 45 degree elbows offer less restriction to the flow of flue gases and intake air.
For multi-story vertical installations, a Ceiling Firestop, (Simpson-Dura-Vent, Part 963) is
required at the second floor, and any subsequent floors (Figure 14). The opening should be
framed to 10" x 10" inside dimensions, in the same manner as shown in Figure 11.
Figure 14
Any occupied areas above the first floor, including closets and storage spaces, which the
vertical vent passes through, must be enclosed. The enclosure may be framed and sheet rocked
with standard construction materials. However, consult the vent manufacturer’s installation
instructions for the minimum allowable clearance between the outside of the vent pipe and the
combustible surfaces of the enclosure. Do not fill any of the required air spaces with insulation.
16

INSTALLATION
HIGH ALTITUDE
This unit is approved in Canada for altitude from 0 to 2,000 ft. (0 to 600m) (Can 2.17-M90) with the main
burner orifice supplied. For installations above 2,000 feet, follow current CAN/CGA-B149.1 and B149.2.
In the USA refer to ANSI Z223.1 — latest edition, Appendix F, for resizing the orifice.
At altitudes greater than 2,000 feet it is necessary to match the air and fuel requirements by installing a
main burner orifice sized for the elevation that the appliance is installed at by referencing the chart shown
below. Be sure to check both front and rear orifice for proper drill size.
DRILL SIZING CHART
RECOMMENDED SIZE vs. ALTITUDE
ALTITUDE NATURAL GAS PROPANE (LPG)
Front Rear Front Rear
2,000 ft / 600m # 50 # 59 #1.25mm # 68
3,000 ft / 900m # 51 # 61 # 56 # 69
4,000 ft / 1200m # 51 # 61 # 57 # 69
5,000 ft / 1500m # 51 # 62 # 57 # 69
6,000 ft / 1800m # 52 # 62 # 57 # 70
7,000 ft / 2100m # 52 # 63 # 58 # 70
8,000 ft / 2400m # 52 # 64 # 59 # 70
9,000 ft / 2700m # 53 # 64 # 59 # 71
10,000 ft / 3000m # 53 # 65 # 60 # 71
The above orifice sizing chart should be used as a guide only. Actual orifice size may be
different due to venting configuration and actual altitude.
.
17

INSTALLATION
GAS VALVE CONNECTION
The gas control valve is located behind the lower grill. The control valve has a 3/8" NPT
threaded inlet port.
Secure all joints tightly using appropriate tools and sealing compound. Leak-check the
installation with a soapy water solution or electronic leak detector. DO NOT USE OPEN
FLAME FOR LEAK TEST.
Figure 15
GAS PRESSURE CHECKS
The gas valve is equipped with ports for testing the manifold pressure and inlet pressure. When
checking pressures, follow these steps: Check and adjust (if required) the inlet pressure first
and then check and adjust (if required) the manifold pressure.
1. With gas valve knob in “OFF” position, use small screw driver to loosen the screw (turn
clockwise) inside the pressure port.
2. Slide 1/4" tube over the port and connect other end of tube to pressure gauge/manometer.
3. Start pilot and burner and read pressure.
4. When finished, shut burner and pilot off, remove tube, tighten screw inside pressure port,
and carefully check for leaks.
NEVER increase gas pressure beyond listed limits.
OUT
L
T
O
I
P
INOUT
L
T
O
I
P
IN
SIT VALVE
1/2" SHUT-OFF
VALVE
SUPPLY LINE
18