Page 1
Model AM2 M40 Panel
Installation, Operation, and Maintenance Manual
Save these instructions. This document is the property of the owner of this equipment and is
required for future maintenance. Leave this document with the owner when installation or
service is complete.
RECEIVING AND INSPECTION
Upon receiving unit, check for any interior and exterior damage, and if found, report it
immediately to the carrier. Also check that all accessory items are accounted for and are
damage free.
WARNING!!
Installation of this control should only be performed by a qualified professional who has read
and understands these instructions and is familiar with proper safety precautions. Improper
installation poses serious risk of injury due to electric shock, and other potential hazards.
Read this manual thoroughly before installing or servicing this equipment. ALWAYS
disconnect power prior to working on module.
March 2011, Rev 3
A0017477
Page 2
TABLE OF CONTENTS
WARRANTY .................................................................................................................................................. 3
PIPING SIZE SELECTION ............................................................................................................................ 4
INSTALLATION ............................................................................................................................................. 7
Plumbing ................................................................................................................................................... 7
Site Preparation .................................................................................................................................... 7
Assembly .............................................................................................................................................. 7
Electrical ................................................................................................................................................... 7
Field Wiring ........................................................................................................................................... 7
MAINTENANCE .......................................................................................................................................... 11
Start-Up and Maintenance Documentation ........................................................................................ 12
Factory Service Department ............................................................................................................... 12
2
Page 3
WARRANTY
This equipment is warranted to be free from defects in materials and workmanship, under normal use and
service, for a period of 12 months from date of shipment. This warranty shall not apply if:
1. The equipment is not installed by a qualified installer per the MANUFACTURER’S installation
instructions shipped with the product,
2. The equipment is not installed in accordance with federal, state and local codes and regulations,
3. The equipment is misused or neglected,
4. The equipment is not operated within its published capacity,
5. The invoice is not paid within the terms of the sales agreement.
The MANUFACTURER shall not be liable for incidental and consequential losses and damages
potentially attributable to malfunctioning equipment. Should any part of the equipment prove to be
defective in material or workmanship within the 12-month warranty period, upon examination by the
MANUFACTURER, such part will be repaired or replaced by MANUFACTURER at no charge. The
BUYER shall pay all labor costs incurred in connection with such repair or replacement. Equipment shall
not be returned without MANUFACTURER’S prior authorization and all returned equipment shall be
shipped by the BUYER, freight prepaid to a destination determined by the MANUFACTURER.
3
Page 4
PIPING SIZE SELECTION
Equivalent Pipe Length For Various Pipe Fittings
Pipe Size Inches
45° Elbow
90° Elbow
Tee Thru Run
Tee Thru Branch
3/4"
1.03
2.21
1.23
4.41
1"
1.31
2.81
1.56
5.62
1 ½”
2.15
4.31
2.4
8.63
Pressure Drop (PSI) per Equivalent Foot of Waterline - Pipe Size
Gallons per Minute
Waterline Pipe Size (PSI per foot of pipe)
3/4”
1”
1 1/2”
10
0.102
0.029
0.004
20
0.368
0.105
0.014
30
0.779
0.222
0.030
40
1.327
0.379
0.052
50
2.005
0.573
0.078
60
2.809
0.803
0.109
70
3.735
1.068
0.146
80
4.782
1.367
0.186
90
5.947
1.700
0.232
100
7.223
2.066
0.282
To ensure proper operation of the Self Cleaning System, a minimum of 30 PSI water operating pressure
during spraying must be achieved at the hood nozzles. For this to occur, proper sizing of the water line is
required. Use the following steps to calculate the piping minimum size.
1. Use the Minimum Pressure Requirements for Lengths of Hood chart and find the minimum PSI
required at the hood inlet. Subtract this value from the available PSI at the panel pressure gauge.
Maximum panel operating pressure is 50 PSI. This will be your maximum allowable pressure
drop for field installed pipes between the panel and the hood.
2. Most fittings add an equivalent pipe length to the total run. Use the chart below to calculate the
equivalent pipe length for installed fittings. If you have multiple fittings of one type, simply multiply
the number below by the total number of the fitting and add to the total run length.
3. To calculate the total flowing pressure drop between the panel and the hood, take the total
equivalent length found in step 2 and add the total linear field installed pipe length. Multiply this
number by the value found in the table below, Pressure Drop (PSI) per Equivalent Foot of
Waterline. (Gallons per minute is calculated by multiplying the length of the hood by 0.7 GPM)
This will be the friction pressure drop between the hood and the panel.
4. Add in the pressure drop due to gravity. This must be evaluated to overcome any rise in pipe
elevation between the panel and the hood. There is .43 PSI/ft of vertical rise of pressure drop..
5. Now, compare the maximum allowable pressure drop from step 1 to the calculated pressure drop
from step 3. If the calculated pressure drop exceeds the maximum allowable pressure drop,
increase the pipe size and recalculate steps 2 and 3. Continue this step until the calculated
pressure drop is below the maximum allowable.
4
Page 5
Field Pipe Pressure Drop Calculation Example
Wall mount panel installed with 30 feet of ¾” linear pipe between panel and hood. (2) 90 degree elbows
are installed in the pipe run and the pipe run has a vertical rise of 5 feet. Length of end-to-end hood
system is 32 feet.
Hood System = 32 feet. Flow rate = 32 feet * 0.7 GPM = 23 GPM
Pressure required at hood = 45 PSI.
Pressure at panel gauge = 50 PSI.
Allowable pressure drop between panel and hoods: 50 PSI – 45 PSI = 5 PSI
Equivalent length of pipe = 30 + 2 * 2.21 = 34.42 feet
Friction Pressure Drop through pipe = 34.42 * 0.779= 26.81 PSI
Gravitational Pressure = 0.43 PSI/ft * 5 feet = 2.15 PSI
Total Pressure Drop in Field Pipe between panel and hood = 26.81 PSI + 2.15 PSI = 28.96 PSI
Allowable pressure drop = 5 PSI
This system will not work correctly because calculated pressure drop is greater then allowable pressure
drop. Pipe size will need to be change to 1-1/2 inch diameter.
Re-calculate with 1-1/2 inch pipe instead of ¾” pipe:
Equivalent length of pipe = 30 + 2 * 4.31 = 38.62 feet
Friction Pressure Drop through pipe = 38.62 * 0.030 = 1.15 PSI
Gravitational Pressure = 0.43 PSI/ft * 5 feet = 2.15 PSI
Total Pressure Drop in Field Pipe between panel and hood = 1.15 PSI + 2.15 PSI = 3.30 PSI
Allowable pressure drop = 5 PSI
This system will work correctly because calculated pressure drop is less then allowable pressure drop.
Pressure Loss Through Typical Water Pipe Chart
5
Page 6
Minimum Pressure Requirements for Lengths of Hood
Length of Hood
(Ft)
Minimum Inlet Water
Pressure for Cold
Mist (PSI)
Minimum Inlet Water
Pressure for Self
Cleaning (PSI)
0
10
30 4 10
30 8 10
30
12
10
30
16
15
30
20
15
31
24
15
32
28
15
34
32
20
37
36
20
39
40
20
42
44
20
46
48
20
50
NOTE: Water pressure may not drop below 30 PSI while the hood hot water is operating. Pressure may
not rise above 50 PSI when the hood is spraying. If the pressure is greater than 50 PSI, a water regulator
must be connected. The chart above is for continuous hood installations. If you exceed the lengths above,
water line must be branched for adequate water supply.
6
Page 7
INSTALLATION
Refer to the project blueprints for proper plumbing and electrical hookup, located on the inside of the
plumbing door. CAUTION: Do not apply power before plumbing and electrical installation is complete on
the panel. Please see drawings for the panel on the following pages.
Plumbing
Site Preparation
1. Provide clearance around installation site to safely install equipment into its final position.
2. Consider general service and installation space when locating unit.
Assembly
1. Mount the panel on the wall, or recessed in the wall with an optional trim ring if ordered,
approximately 42” from the finished floor to the bottom of the cabinet.
2. Open the cabinet and verify proper pipe size for the hot water connection. Route and connect the
hot water supply piping to the manifold connection located at the bottom of the cabinet.
3. Connect piping from the top connection of the manifold and route to the ceiling. Connect a
vacuum breaker at the highest point of the run to the hood connections.
4. Connect a tee fitting after the vacuum breaker and connect the ¼” NPT soap injection check
valve.
5. Continue the pipe to the hood, and then connect to the wash manifold connection on the hood.
6. Connect the tubing to the check valve and route tubing to the cabinet. At the cabinet, connect
tubing to the top connection on the clear block mounted on the detergent pump.
Electrical
Electrical termination points are located on the right hand side compartment of the panel. One side of
these terminal blocks is internally wired. Field wiring is expected on the other side, directions shown
below.
Field Wiring
1. 120 VAC signal to power the hot water solenoid valve should be connected to R4 (HOT) and N1
(Neutral).
2. 120 VAC signal to power the surfactant pump should be connected to R8 (HOT) and N1
(Neutral).
3. A liquid level sensor is provided with a dry contact between H1 and R9 to be used as an input
signal. Contact closes when surfactant level is low.
4. A prime switch is provided with a dry contact between H1 and R7 to be used as an input signal.
The prime switch should turn the surfactant pump on if the surfactant level is sufficiently high
(liquid level sensor contacts opened).
5. If an electrical pre-wire package controlling the fans or an Energy Management System (EMS) is
also provided by the same manufacturer in conjunction with the Self Cleaning panel, the pre-wire
and EMS package will contain terminal blocks identically labeled H1, N1, R4, R7, R8 and R9.
Connect the terminal blocks together from the Self Cleaning panel to the electrical control panel.
7
Page 8
AM2 M40 Electrical Diagram
8
Page 9
AM2 M40 Control Panel Diagram
9
Page 10
AM2 M40 Control Panel Diagram with Backflow Preventer
10
Page 11
MAINTENANCE
To guarantee trouble free operation of this control, the manufacturer suggests following these guidelines.
Most problems associated with unit failures are directly related to poor service and maintenance.
Please record any maintenance or service performed on this equipment in the documentation section
located at the end of this manual.
First Week of Operation
1. Remove and clean the line strainer screen, located in the pressure reducing valve assembly
within the plumbing enclosure of the control panel, after the first week of operation. Clogging from
line debris, caused by new construction, will happen more frequently until lines are flushed by
repeated usage.
Weekly
1. The surfactant level should be checked to keep the detergent pump from losing its prime. If low,
then add surfactant until full. Please see directions for priming the detergent pump if needed.
2. Monitor the hot water temperature (140 to 170 degrees F) and pressure (30 to 50 PSI) while
ventilators are washing. Readings can be accomplished by checking the combination
temperature/pressure gauge located within the plumbing enclosure of the control panel.
Every 3 Months
1. Visually inspect the components of the control panels to ensure proper operation.
2. Check all nozzles for proper and evenly distributed water flow. If nozzles are clogged, clean or
replace.
Every 6 Months
1. The line strainer, located in the pressure reducing valve assembly, should be removed and
cleaned. Remove the bottom plug and O-ring; the strainer will be attached to the bottom plug and
will be extracted when the bottom plug is removed. Remove and clean strainer as required. If the
screen is damaged, then a replacement of 80-mesh screen is required.
2. Check all nozzles for proper and evenly distributed water flow. If nozzles are clogged, clean or
replace.
Prime the Detergent Pump
1. Loosen the wing nut on the knurled adjustment cam nut, located behind the clear pump block.
2. Turn the pointer index to the setting number 6 (maximum flow) and then retighten the index.
3. Ensure that the strainer is below the surface of the surfactant level.
4. Loosen the tubing connection on top of the clear block. WARNING: Do not let surfactant spray
from the loose fittings. Wrap a rag around loosened fittings to prevent the surfactant from
spraying.
5. Press the pump prime switch or rotate the knurled nut by hand until the detergent is drawn out of
the loosed fitting with no air bubbles in the clear block.
6. Tighten the top fitting and press the pump prime switch or rotate the knurled nut by hand to verify
that the surfactant will be pumped beyond the cleat block into the top tubing.
7. Loosen the wing nut and adjust the pointer to the 1.5 or 2 setting, and then retighten the wing nut.
The pump is primed and now ready for use.
11
Page 12
Start-Up and Maintenance Documentation
Job Name
Service Company
Address
Address
City
City
State
State
Zip
Zip Phone Number
Phone Number
Fax Number
Fax Number
Contact
Contact
Purchase Date
Start-Up Date
Date
Service Performed
Job Information
Maintenance Record
Factory Service Department
Phone: 1-866-784-6900
Fax: 1-919-554-9374
12
Loading...