Attachment 62 - Section J.62 Talco Fire System - Talco FEMA TPS Installation Operation and Maintenance Manual.pdf

Attachment 62 Section J.62

TALCO FIRE SYSTEMS – TALCO FEMA TPS

INSTALLTION, OPERATION AND MAINTENANCE

MANUAL

Portland, OR

503-688-1231 800-878-8055 / 503-688-1234 (fax)

Talco FEMA TPS

INSTALLATION, OPERATION and

MAINTENANCE MANUAL

1 3

2 4

3 5- 10

4 11- 16

5 17

6 18- 20

7 21- 28

8 29- 36

9 37- 40

10 41- 42

11 43- 50

12 51

13 52- 53

14 54- 55

15 56- 58

16 59- 63

17 63- 65

18 66- 67

19 68- 69

20 70

21 71

Tie Down and Anchoring The TPS Enclosure

Maintenance Checklist

Heat Trace Connections to the MHU

Preparing and Locking Mechanical Interlock

Filling System and Pressure Tests

Insulating the Water Hose Connection

Final Set Up

Installing Sprinkler Cover Plates

De-Commissioning

Contents

Appendix C, MHU Tech Bulletin, Tie Down Strap Safety

Appendix D, Upper TPS Valve Identification

Appendix E, Lower TPS Valve Identification

Appendix B, Local Fire Dept. Handout

Overview

Where to place the TPS

Preparing the Base

Moving and Lifting the TPS Enclosure

Installation of Discharge Sprinkler Hose/Heat Trace/Power Cord

Set Up and Commissioning Instructions

Exploded View of Install Parts Box Contents

Appendix A, Living with Sprinklers, Occupant Handout

1. Overview

The steps to install a TALCO TPS and to ac vate the residen al sprinkler system in FEMA’s Manufac-tured Housing Unit (MHU) are described in detail in this document.

1. Decide where on the site the TPS should go.

2. Prepare the base to mount the TPS on.

3. Place the TPS on the prepared base and anchoring.

4. Instruc ons for connec ng piping, hose and electrical connec ons.

5. Instruc ons for filling the tank and the system piping to the MHU.

6. Instruc ons for star ng and tes ng for proper opera on.

7. Instruc ons for monthly tes ng while TPS is being used.

8. Instruc on for de-commissioning TPS unit.

9. Instruc ons for maintenance while unit is in storage

Detailed descrip ons of each of the steps are given in this installa on document for the TALCO TPS.

Unless specifically stated, the instruc ons below are requirements for the proper installa on of the

TPS and MHU sprinkler systems. In all instances, devia ons from this document require advance approval from FEMA’s Contrac ng Officer’s Representa ve (COR)

Every TPS is to be installed on a properly prepared base.

Every TPS is to have heat trace protec on for the hose and sprinkler riser installed

Every TPS must have the connec on between the MHU sprinkler riser and the insulated hose assembly wrapped in insula on

Every TPS enclosure must be anchored using MHU anchors.

2. Where to Place the TPS

The loca on of the TPS on the MHU installa on site will depend on the specific condi ons of each site. The TPS must be posi oned so that the 30 foot long hose and electric cord can reach the connec on points of the MHU. Preferred loca ons of the TPS rela ve to the MHU are illustrated in

Figure 1. Note the minimum set-back dimensions between the MHU and the TPS, and between the porch/ramp and the TPS that are shown in Figure 1. The dimensions shown are minimum, the distances can be greater than the minimum values shown in the figure without the need for approval from FEMA, as long as the TPS is placed within the boundaries of the lot. If site condi ons require placing the TPS closer to the MHU than shown in Figure 1, obtain approval from FEMA’s COR before proceeding. The set-back dimensions between the TPS and MHU were established to give room for installa on and maintenance of the skir ng and under-home connec ons. The set-back dimensions between the TPS and the porch/ramp were established to discourage climbing from the porch/ramp onto the top of the TPS unit.

Figure 1. Acceptable loca ons for the TPS unit. TPS posi on is to be determined by site condi-ons. TPS hose and wire are 30 feet long. Ensure that placement of the TPS connec on of the hose and wire to the MHU connec on points. Dimensions shown are minimum; actual dimen-sions may be longer but not shorter.

3. Preparing the Base

The TPS must be installed on a prepared level base. The base must be level within one-half inch (1/2”) in ten (10) feet. The TPS base can be a gravel pad, ABS pads, or a pre-exis ng concrete or asphalt sur-face. A gravel pad is the preferred installa on method. Unless required by local code, do not install a new concrete, asphalt or other hard surface pad for the TPS. Installa on of a new hard surface to be used as a base for the TPS must be pre-approved by FEMA’s COR. If the local soil can support the weight of the MHU, it can support the weight of the TPS without any other special prepara on other than preparing the base. A gravel pad or ABS pads are required to facilitate installa on, decommission-ing, and removal of the TPS, by ensuring adequate space is present for the forks of a fork li . ABS pads may be used only where the slope of the ground across the length of the 8 . installa on site is equal to or less than two inches. ABS pads should not be used where leveling of the site results in removal of more than 2 inches of soil from one end of the site. (i.e., the soil surface should not extend above the top of the ABS pad anywhere.) Where site slope exceeds 2 inches in 8 ., a gravel pad/base is required

Gravel pad used as the base for the TPS:

A prepared gravel base is the preferred method for installa on of the TPS. Gravel must be retained inside a wood frame, fabricated on site to provide a level base for the TPS. Three-quarter inch (¾ inch) crusher run mix is the preferred gravel product; if this is not available, propose an alternate mix to

FEMA’s COR.

Fabricate the wood frame from pressure-treated 4”x__ or 6”x__ lumber (see Figure 2). Landscape mbers are also acceptable. Pressure treated lumber shall be rated for exterior use, in contact with ground. Use American Wood Preservers’ Associa on (AWPA) Use Category (UC) UC4A or be er.

Where lumber mee ng this requirement is not available, other use category lumber may be used if approved by FEMA’s COR.

The dimensions of the wood frame shall be not less than 3½ inches high (nominal 4” lumber or m-ber), 10 . long and 6 . wide. This is large enough to accommodate all of the TPS units in current in-ventory, and will permit replacement of the TPS without modifica ons to the base if it becomes nec-essary to replace the TPS. Install blocking in each corner to reinforce the corner connec ons; mini-mum size of blocking is 4”x4”.

Pin all layers of mber used to fabricate the frame to the ground using rebar. Rebar pins shall be driv-en at least 24 inches into the ground. Pin loca ons shown in Figure 2 are the minimum number of pins that are required

Figure 2. Pressure˜treated wood frame for gravel base under TPS, showing minimum required dimensions. Consider making the frame up to a foot wider to provide space to install the required ground anchors to tie down the TPS inside the frame.

Where the slope of the site exceeds the thickness of the bo om mber or lumber used to fabri-cate the wood frame, build up a retaining wall on the high areas as needed to keep the soil out of the TPS base. Where a retaining wall is built, only the lowest layer of wood framing is to be filled with gravel. Figure 3, Figure 4, and Figure 5 show the desired installa on on site eleva ons that may be encountered. Be careful to layout the frame and retaining wall so that the fork li truck can place the TPS on the prepared base safely and without damage to the TPS or base.

FIG. 2

FIG. 3

FIG. 4

1/2" in 10 feet.

ABS pads used as the base for the TPS:

Remove the vegetation, and level the soil. Slope of the soil shall not exceed and/or weed-eater damage.

to create an area without vegetation, protecting the TPS from lawnmower of ABS pads with pre-drilled holes is Sedco Pier, Inc.

necessary to ensure that water can drain out of the pad. One manufacturer rain water that will form a pool where mosquitos can breed, so it is pads before placing the padson the base. Thepockets in the ABS pads can drain holes must be drilled. Drill a 1/4" hole in every pocket in the ABS If the ABS pads do not have a drain hole in every pocket (see photo below) extends beyond the outer edges of the pads to be placed.

Place one layer of geo-textile fabris on the prepared soil so that the fabric

ABS pad that has drain holes in every pocket from the factory wide. It is intended that the ABS pads extend beyond the edges of the TPS Place the ABS pads to cover an area not less than 8 feet long x 4ft. 6in.

ABS pads should be placed directly on the geo-textile fabric on level soil to keep soil from infiltrating into the pads and to make it easier for decommissioning.

Do not put gravel under the ABS pads.

8 ABS pads should not be used over gravel base.

replaced during decommissioning.

If soil must be excavated to level the base, save the soil so it can be 7

Figures 2, 3, and 4 show the required installation on sloping and level sites.

frame at low points.

under the high end so that the wood frame is level. Do not shim up the

Remove any excess gravel of the gravel base in any direction shall not exceed 1/2 inch in 10 feet.

Tamp and screed the gravel to be level inside the wood frame. The slope the lowest tier of wood should be filled with gravel.

where sloping ground requires a retaining wall type box (Figure 4), only 3-1/2 inch high gravel base is more than adequate. In those instances based on the width of the lumber used to fabricate the wood frame. A Table 1 provides an estimate of the volume of gravel that will be required Place 3/4" crusher run mix gravel inside the wood frame.

Preparing a Gravel Base for the TPS Installation must be level and flat. If the frame is not level, excavate the soil from Lay the wood frame directly on the geo-textile fabric. The top of the frame where the TPS is be installed.

lumber may be used in the wood frame based on the slope of the ground pressure treated lumber or timber to fabricate the frame. Larger dimension Fabricate the wood frame to retain the gravel. Use 4X4 inch or larger will extend beyond the outer edges of the frame.

Place one layer of geo-textile fabris on the prepared soil so that the fabric enough to place the wood frame. Soil slope should be level.

Remove the vegetation, and excavate soil as needed to make a level area 1

Minimum dimensions of wood frame 10 ft. long x 6 ft. wide

Table 1. TPS Base Preparation Dimensions and Fill Estimates

Volume of 10" (nominal) high frame 1.8 cubic yard Volume of 8" (nominal) high frame 1.4 cubic yard Volume of 6" (nominal) high frame 1.0 cubic yard Volume of 4" (nominal) high frame 0.6 cubic yard

MOVING AND OR LIFTING THE TPS ENCLOSURE

The outside sling a achment points (shown in the above drawing) of the li ing bar built into the top of the TPS enclosure are to be used to li units using a crane or other approved li ing machine or de-vice. Use as a minimum a 2 leg wire bridle, each leg being a 1/4” wire, 6 x 19 improved plow steel

IWRC cable, with at minimum a thimble in the end that a ached to a 1/2” screw pin shackle to the top outside a achment points of the TPS. The other end should have a 6 inch eye that would be a ached to the li ing device. With the legs being 4 feet long it will create a 60 degree angle between the two legs giving the bridle a 1 ton working load limit. (See Figure 1 on the following pages)

The TPS can also be li ed using 2 single 1/4” x 4 foot cables (FIG. 2)that are men oned above (see fig-ure 2 on the following pages) or using a 1 inch nylon sling straps rated for 1000 lbs. each (see Figure 3 on the following pages).

Use only wire-rope/ nylon slings or chains that have permanently affixed and legible iden fica on markings as prescribed by the manufacturer, and that indicate the recommended safe working load for the type (s) of hitch(es) used, the angle upon which it is based, and the number of legs if more than one. is used.

Only trained individuals are allowed to use chains slings as speci ied by OSHA 1926.20 (a) (4)

Choosing the right chain

Choose a chain size that meets your required work load, angles, and reduction factor Choose grade, type, and finish of steel that meets your requirements

MOVING THE TPS WITH A FORKLIFT

EITHER END OR SIDE CAN BE USED FOR

MOVING WHEN EMPTY

UNITS CANNOT BE STACKED.

UNIT IS DESIGNED TO

BE MOVED WITH

STANDARD 42” FORKS

OR APPROVED LIFTING

DEVICE(S).

TPS Tie Down and Anchoring:

The TPS shall be anchored to the ground using mobile home strapping and ground anchors. Two straps are required. The galvanized steel straps are 1-1/4" wide are connected to the ground anchors. Below is a photo of a TPS strapped and anchored.

This anchoring method may present a tripping or other safety hazard. (See Appendix "C", MHU Technical Bulletin concerning the TPS Tie-Down Strap Safety)

The items on the le hand side of this page, 1 each 6 inch Socket Flange, 2 each 6 inch 45 degree PVC Elbows, 4 each 6 inch 90 degree PVC Elbows, and 1 each 30 foot roll of Metallic Tape for a aching heat trace on end that extends into the MHU are packed in the box shown above plus the plas c bag of parts listed on the next page and will be called the installa on parts box. Con-tents of the box are listed on the top of the box.

1. 1-1/2” 45 Degree Galvanized Elbow

2. 1-1/2” 90 Degree Galvanized Elbow

3. Heat Trace End Boot

4. 2 each 1-1/2” Galvanized Union

5. 2 each 1-1/2 X Close Galvanized Elbow

6. Roll of Insula on Tape

7. Roll of Teflon Thread Tape

8. Tamper Proof Bit for 5/32” Screws (for Cover of Alarm Box)

9. Tamper Proof Bit for 1/4” Screws (for Installing of Alarm Panel)

10. 1/4-20 X 1/2” Tamper Proof Screws (for Installing Alarm Panel)

11. 1/4” Washers for use in Installing Alarm panel

12. 3/8-16 X 2” Tamper Proof Screws (for Installing Socket Flange)

13. 3/8” Washers for use in Installing Socket Flange

14. Tamper Proof Bit for 3/8” Tamper Proof Screws (for Installing 6” Socket Flange)

CONTENTS OF PLASTIC BAG LOCATED IN INSTALL PARTS BOX , BOX LOCATED INSIDE TPS ENCLOSURE

Alarm panel is in the cardboard box labeled ALARM PANEL. See the pictures below. The alarm panel cardboard box is located in the TPS unit to the right of the entrance door on top of the installa on parts box

Le hand picture shows a 6 inch diameter by 6 foot long PVC pipe that comes in the TPS enclosure. It will be right in the front when opening the door to the en-closure. Both ends are taped closed and inside the pipe is 1 each 1-/8” insula on tube approx. 19” long , 1 each 1/2 inch by 2 . conduit with an electrical fi ng a ached, and 1 each 6 inch in diameter by approx. 6 feet insula on for the dis-charge. Items are pictured below.

1. Dig a trench to protect the water hose assembly and the electric cable. The trench must be not less than 24 inches deep, and 7 inches wide. The trench should reach from the edge of the prepared base for the TPS to underneath the MHU, inside the skir ng.

2. Cut the 6” PVC pipe to keep the 90° PVC pipe elbow as close to the side of the TPS as possible.

The PVC pipe should run to the ground just barely touching the edge of the ABS pad, wood frame, or hard surface prepared base.

4. Measure and cut the ver cal sec on of 6” PVC pipe to length on the TPS side so the elbow just touches the bottom of the trench. Cut a second length of PVC pipe to encase the cable and hose

Where it exits the trench under the MHU. The exit pipe should extend above the surface of the ground not less than 8 inches.

5. Slip the PVC elbows, and pipe over the TPS end of the electric cable and the water hose assembly.

(It will be easier to thread the cable through the PVC pipe first since the connec ng plug on the end of the cable is large.) Test fit the PVC pipe, make adjustments as necessary. If the pipe is not snug fi ng, glue the PVC parts together, otherwise, glue is not necessary. The flange on the side of the

TPS can be easily removed during decommissioning by removing the bolts in the flange.

6. Lay the water hose assembly and electric cable in the trench. Be sure to remove any sharp rocks or debris that could cut into the cable.

7. Posi on the PVC pipe around the hose and cable at the MHU end of the trench. This pipe must extend above grade not less than 8 inches to protect the cable from rodents.

8. Extend the hose assembly to the point of connec on under the MHU. Lay the excess hose neatly on ground inside the skir ng underneath the MHU.

9. Remove the protec ve pipe caps from the sprinkler drain pipe and from the sprinkler riser pipe on the underside of the MHU. Lay them nearby under the MHU so that they can be re-used during decommissioning. Remove the protec ve cap from the end of the hose assembly.

10. Connect the water hose assembly to the sprinkler riser using the fi ngs and pipe thread tape provided in the TPS parts box. See Figure 9, and 10 on the following pages). The parts box includes a union, close nipples, a 45° elbow, a 90° elbow, and pipe thread tape. The hose may be connected to the riser in any of the arrangements shown in depending on site condi ons. You will not need to use all of the pipe fi ngs provided in the parts box.

INSULATED DISCHAREGE HOSE INSTALLATION BETWEEN TPS AND MHU:

insulated hose to be installed on or above the ground if have just read in the previous pages. It is acceptable for the the TPS and the MHU is to bury the hose in the trench as you

The preferred method of installing the insulated hose between two following diagrams.

installed following the guidelines and requirements shown in the

Gap between

MHU

pipe and skirt shall be neatly made and shall not exceed

¼ inch.

May also be done with 90° elbows

Tank and Pump System

(TPS)

AC Power

(red line)

�Heat Trace

Cable

(black line)

ABS Pads, Wood Frame w/Gravel, or

Hard Surface Base

Grade

Secure pipe to ground at 36 inches on center. Secure at the skirt, at TPS end, and every 36 inches between. Attachment must prevent lateral movement if pipe is kicked hard, as well as lifting. Stake may be located inside the skirt if visible for inspection.

Sprinkler Riser Pipe

Pipe union Sprinkler Riser Pipe

Close Nipple

� Insulated Hose

90° elbow

Close Nipple

FIG. 9 Acceptable Connections of Hose to Sprinkler Riser

TALCO TPS SET UP AND DE‐COMISSIONING INSTRUCTIONS.

TOOLS REQUIRED:

2EA PIPE WRENCHES: 18” RECCOMENDED

1 EA BOX KNIFE

1EA 1/4” NUT DRIVER FOR TAMPER PROOF BITS

1 EA CRESENT WRENCH AND SAW FOR CUTTING 6" PVC PIPE

1EA TAMPER PROOF BIT FOR ALARM PANEL MOUNTING (IN INSTALLATION

PARTS BOX)

1 EA TAMPER PROOF BIT FOR 6” HOSE FLANGE( IN INSTALLATION PARTS

BOX)

1 EA TAMPER PROOF BIT FOR COVER OF ALARM PANEL(IN INSTALLATION

PARTS BOX)

DO NOT PLUG IN THE POWER CORD

(ELECTRICAL CONNECTION) OR TURN THE

MAIN DISCONNECT SWITCH TO THE ON

POSITION UNTIL INSTRUCTED TO DO SO

(ITEMS PICTURED BELOW)

FIG.12

FIG.13

FIG.14

FIG.15

FIG. 12. Unlock padlock and open door to enclosure.

Lift up the 6" PVC pipe and remove from the enclosure.

Carefully remove insulated hose and lean against the enclosure left of the door. Inside to the right is the in stallation parts box, remove box and alarm box . Parts inside the boxes and inside the PVC pipe are for setting up the TPS for operation. Remove the 2 foot EMT con duit from the 6" PVC pipe. Remove the alarm box which has the Cat. 5 cable connected. (Fig. 13)

KEEP All PARTS BOXES FOR DE-COMISSIONING

Remove the cover of the alarm panel using the 5/32" tamper proof bit in the large plastic bag that was in the cardboard parts install box. Remove the tube of sealant that is inside and replace the cover on the alarm box. Push the Cat. 5 cable that is coming out of the alarm panel into the 1/2" EMT conduit. (Fig. 13)

Cut the two tie wraps that are keeping the conduit nut on the conduit. Insert the conduit into the con duit fitting and tighten up the conduit nut. (Fig. 14)

On the back of the of the alarm box a round the pen etration where the conduit fitting is installed, place a circle of sealant as in (FIG 14), so the hole in the TPS is sealed to the alarm panel when secured to the

TPS.

On the side opposite the door of the enclosure there is a hole through the enclosure with a plug in it where the EMT conduit is put through. Remove the plug and mount the alarm panel with 4 each tamper proof screws (1/4-20 x 1/2" long) and washers into the inserts molded into the enclosure. When finished it will look like FIG. 15 on the outside. (NOTE: Tamper proof screws, washers, and bit are located in the large plastic bag)

In the Photo A to the le , the arrow points to the suc on piping that needs to be connected.

In Photo B it shows the rubber gasket and the compression fi ng nut. Slide the rubber gasket down the PVC pipe to the compression fi ng.

The rubber gasket should just enter the compression fi ng and the compression nut should be threaded on hand ght.

(DO NOT USE A WRENCH TO TIGHTEN THIS FITTING)

Photo A

Photo B

Photo C

In photo D there is a plug . There is one located on each side of the TPS enclosure. The plug is held in place with 4 each tamper proof screws. Use the T-31, largest tamper proof bit, located in the large plas c bag in the install parts box, and remove the screws and the plug on the side where the hose will be exi ng the TPS enclosure. Save the plug and the screws for the de-commissioning procedure. In place of the plug, mount the 6” socket pipe flange in its place using the

3/8” x 2” long machines and washers using the t-31 tamper proof bit used to remove the plug.

Photo D

Photo E

Photo E shows the 6 inch socket pipe flange mounted to the side of the TPS enclosure. This is where the power cord and the insulated discharge hose will exit the TPS enclosure and be run to the MHU.

Photo F

Inside the TPS enclosure is the power cord and plug.

Feed the plug out through the opening of the 6 inch flange you just installed as shown in Photo F. This is the power cord that powers the electrical control panel inside the TPS enclosure.

Photo G Photo H

Photo K Photo L

Inside the TPS enclosure is the control panel ((Photo G). In Photo H the arrow is poin ng to a light gray cable that is marked alarm. The cable will not be wound up but extended along the tank to-ward the back of the enclosure and needs to be plugged into the alarm cable that you earlier ran into the enclosure by following the steps of moun ng the alarm panel. The alarm cable from the control panel will be e wrapped to the band around the tank that holds the tank in place. Plug the alarm cable from the alarm panel to the cable from the control panel by inser ng the Cat 5 end into the double ended connector pictured in Photo K and L.

Photo I Photo J

Photo M

Photo N

Photo O

The insulated discharge hose that was leaning against the enclosure can now be unrolled and with the end not connected can be fed through the 6 inch socket flange from inside the enclosure. The end has a plas c cap on it to protect the threads and to keep rocks and dirt from entering the hose. Do not remove this protec- ve cap un l instructed to do so. Please do not twist or kink the hose while passing it through the flange. The full length is pulled through un l there is 2 inches of insulated hose that is le on the inside of the enclosure. When pulling the hose do not pull the heat trace wire that is a ached to the hose, pull using the threaded hose end.

Pull the power plug cord through being careful that when you reach the end that you are not pulling the cable ght where it terminates in the control panel. The power cord and the insulated hose will run togeth-er un l it reaches under the

MHU. Any extra length can be coil up loosely under the MHU a er connec ng the hose to the riser in the MHU. Protec ve cap must be removed when connec on is made to the MHU.

Using the 1-3/8” by approx. 19” piece of insula on found inside of the 6” PVC pipe, (Photo N) bend around the hose insula on and work into the socket flange crea ng a barrier for air and pest infiltra on

(Photo O). 6" PVC nipple can be inserted pushing the 1-3/8" insulation into the flange or 1-3/8" insulation can be installed from the inside of the enclosure.

The picture to the top left shows how to start to install the 1-3/8” insulation around the insulated hose from the inside of the enclosure.

The picture to the bottom left shows what it looks like when completed. Power cable shall be positioned between the hose insulation and the insulation used to create a vapor barrier.

Photo P

Photo Q

The length of hose that is le inside the TPS enclo-sure should be posi oned in long rounded bends from the discharge piping to where it exits the en-closure. Please do not kink the hose. In Photo P you will no ce the hose looks flat in places but when the hose is pressurized it will become round.

In Photo Q you will no ce that when pressurized the hose assumes the rounded shape permi ng full flow of water when needed.

Connect Heat Trace Cable to the MHU

Run the end of the heat trace cable into the MHU. TALCO has only one type of heat trace cable and one method to connect the heat trace cable to protect the portion of the fire sprinkler riser in the MHU that is beneath the floor of the MHU from freezing. The following pages give the proper procedures for connecting the heat trace cable.

CAUTION!

THE ENDS OF THE HEAT TRACE CABLE MUST BE CAREFULLY PREPARED. CUT THE CABLE CLEANLY THROUGH, AND ENSURE THAT NO PART OF THE WIRES IN THE OUTER BRAID (UNDER THE OUTER ORANGE INSULATION) IS IN CONTACT WITH THE WIRES IN THE INNER CORE. THE HEAT TRACE IS PROTECTED BY A GROUND FAULT

CIRCUIT BREAKER THAT WILL TRIP IF THE WIRES ARE IN CONTACT WITH ONE ANOTHER. IF THE BREAKER TRIPS, THE HEAT TRACE IS NOT ACTIVE.

Every end of the heat trace cable must be covered by an end seal provided in the TPS parts kit. The cable is very sensitive to moisture in the air; failure to install the end seal on the end of the cable will result in short circuit of the heat trace cable.

Heat Trace Installation

Two pull tapes were installed between the sprinkler riser pipe and the insulation above the belly board.

Heat trace cable from the TPS will be run from the end of the insulated hose assembly into the MHU using one of the pull tapes. (The second pull tape is a spare.) There is a Splice Kit in the TPS parts box that will not be used in this procedure.

MHU Sprinkler Riser

Sprinkler riser has one or two nylon pull tapes

Sprinkler Riser

1. Fish the heat trace cable from the end of the insulated hose assembly into the MHU. Use the pull tapes provided or an electrician’s fish tape to fish the new heat trace cable into position. The heat trace cable must be located directly against the pipe under the pipe insulation. See Figure 16, below.

2. Cleanly cut the end of the heat trace cable 12 – 16 inches above the floor of the water heater closet. Install a new End Seal from the TPS parts kit onto the cut end of the heat trace cable. The Splice Kit that is in the TPS parts kit will not be used. See Figure 17, below.

3. Fill the trench and tamp the soil lightly. Be sure no rocks or sharp edges are in contact with the electric cable.

Insulation on riser pipe

Insulation on hose

Insulation over coupling and joint is applied after heat trace and pressure tests are complete.

Tape all joints.

Heat trace cable as shipped from factory (dashed line).

Use pull tape to pull heat trace cable from end of hose assembly into the MHU to be 6" above floor.

Tie to sprinkler riser pipe with plastic cable tie.

Position of heat trace cable under insulation after being pulled into home (red line).

End seal required on end of heat tape cable.

Figure 16. Schematic of heat trace cable connection beneath MHU. This schematic applies when sufficient heat trace cable is available at end of insulated hose from TPS to reach to the floor of the MHU. Splice kit is not used. Lighted end seal inside the MHU (if present) is discarded.

Figure 17. An End Seal must be installed on the cut end of the heat trace cable.

3. Preparing and Locking the Mechanical Interlock

The mechanical interlock installed on the rear of the MHU is shipped from the factory set up to be locked in the OFF position. We need the interlock to be locked in the ON position to prevent tampering with the TPS power supply, so there is a minor modification that must be made to the switch handle on the mechanical interlock. The handle is designed so that this modification can be easily done. (Note: In the event of an incident, we instruct the fire department to cut off the lock with bolt cutters to switch the

TPS power off.)

1. The Talco TPS has a circuit breaker panel inside the TPS. Ensure that ALL of the breakers are switched OFF.

2. Route the cable assembly to the mechanical interlock as described earlier in this guide.

3. Cut a small hole in the top of the MHU skirt directly beneath the mechanical interlock for the electric cable. Work the connector and cable over and through the skirt. Extend the electric cable to the point of connection.

4. Loosen and remove the protective cover on the bottom of the mechanical interlock assembly.

The cover is attached to the interlock, and simply swings back and away once it has been unscrewed.

5. Insert the plug from the TPS cable into the receptacle on the bottom of the mechanical interlock.

The plug can only be inserted one way; look at the tabs on the plug and the receptacle and align them. Once properly aligned, the plug can be easily inserted.

Note: The mechanical interlock is designed so that the connection can only be put together when the switch is in the OFF position. This is an important safety feature.

6. Tighten the locking ring on the plug assembly, securing the plug and cord to the interlock.

7. Leave the switch on the mechanical interlock in the OFF position for now.

8. Switch the 240V / 30A circuit breaker inside the MHU main electric panel that supplies power to the mechanical interlock / TPS to the ON position.

9. Proceed to the next step in the installation – Pressure Tests.

CAUTION!

THE MECHANICAL INTERLOCK IS DESIGNED SO THAT IT CANNOT BE SWITCHED TO THE ON POSITION UNLESS THERE IS

A CABLE PLUGGED INTO THE INTERLOCK. DO NOT ATTEMPT TO ROTATE THE SWITCH HANDLE UNTIL THE CABLE IS

PLUGGED IN AND THE LOCKING RING ATTACHED TO THE PLUG IS SECURELY ATTACHED (HAND TIGHT) TO THE

MECHANICAL INTERLOCK RECEPTACLE.

DO NOT PROCEED UNLESS YOU ARE SURE THAT THE BREAKERS INSIDE THE TPS ARE OFF.

Photo 2. Two different mechanical interlock devices installed on FEMA MHUs.

Mechanical interlock on MHU as delivered.

Cable connected, switch in OFF position.

Interlock with cable connected, and switch in the ON position.

Tabs inside the handle that must be punched out to insert the lock.

Tabs removed, locking handle ready to receive the lock.

Mechanical interlock on MHU as delivered.

Switch in OFF position, no cable connected.

Interlock with cable connected, and switch in the ON position.

Tab removed, and lock being installed to lock the handle in the ON position.

Proper final installation, RFO.

Fill Water Tank & Pressure Test the System

Pressure test of the TPS and MHU sprinkler system are to be completed before fully activating the TPS.

The pressure test is performed in two stages – a low‐pressure test using street pressure through a garden hose, and a pump‐pressure test using the pump in the TPS to pressurize the system. If a leak is present and we test using only the pump‐pressure, much more water could be released into the MHU than if we test at lower pressure.

Pressure tests are to be performed before installing cover plates on the sprinklers in the MHU, and before installing insulation around the connection between the insulated hose and the MHU sprinkler riser, so that it will be easier to find any leaks. The Low Pressure test is to be performed before turning on power to the TPS so that if a leak occurs inside the TPS, the potential electrical hazard is minimized.

Perform the pressure test following the instructions given below. The instructions for the low‐pressure test include a step to fill the water tank using a garden hose.

4 drain line. If the drain line still has the cap on it, remove the cap. (The cap is there to prevent insects

5 sprinkler drain line onto the ground beneath the MHU, close the sprinkler drain valve inside the the MHU sprinkler riser, and before turning on the pump. In cold weather, the

Check that pipe cap on the sprinkler drain line underneath the MHU has been removed from the from getting into the drain pipe during storage and transport).

Connect the garden hose to the garden hose connection labeled SPRINKLER FILL CONNECTION.

Open the valve just below the connection labeled DISCHARGE CONTROL VALVE. Turn water on allowing water to flow from garden hose to the MHU sprinkler system through the TPS hose.

This test should be done before installing cover plates on the sprinklers in the MHU

When the tank is between the max and min fill lines on the marked on the side of the storage tank turn off the water and disconnect the hose.

Fill the tank with water through the garden hose connection labeled TANK FILL CONNECTION.

rear outside of the MHU. Each of these should be in the OFF position before starting this test.

turned OFF. These are the circuit breakers inside the TPS, and the mechanical interlock on the Check to make sure that electrical switches outside the MHU that feed the TPS and pump are

Refer to the photos in the following section for guidance for the locations of internal parts.

LOW PRESSURE (STREET PRESSURE) TEST for TALCO TPS UNIT pipe, or hose.

before installing insulation around the connection between the insulated hose and

PRESSURE TEST (STREET PRESSURE) TEST FOR TALCO TPS

heater and the heat trace should be turned ON before puttung water in the tank, joints in the pipe. Check the connection between the sprinkler riser and the insulated hose.

Open the sprinkler drain valve inside the MHU slightly. When water begins to flow out of theMHU, a

MHU, and allow the water to flow into the pipes in the home.

Leave the hose connected, turned on, discharge control valve open and the sprinkler fill valve open for at least 10 minutes to allow the system pressure to stabilize on the TPS unit.

After 10 minutes, close the sprinkler fill valve, turn the hose off, and disconnect the hose from the sprinkler fill connection.

Record the pressure shown on the pressure gauge. Starting Pressure psi Carefully inspect every sprinkler head in the home, the pipe in the water heater closet, and all visible pipe and Decoshield in the home for leaks. Check for water dripping or running down the walls. Look for drops forming at places where sprinklers are screwed into the pipe and at

After repairing any leaks, repeat steps 8, 9, 10, and 11. Continue checking for leaks and testing until the pressure drop over a one-hour time is zero.

After the system is shown to be leak free by the test above, proceed to the High Pressure Test

Wait one hour. Record the pressure on the gauge. Ending Pressure psi There should be no drop in pressure readings over the test period. If the pressure is lower after the test, look carefully for leaks. Even a single drop can cause a pressure loss. Common places for leaks: the connection between the TPS hose and the sprinkler pipe, the fittings where the sprinklers are screwed into the system, valves that may not be fully closed, fittings or joints inside the TPS.

Carefully inspect every sprinkler head in the home, the pipe in the water heater closet, and all 7 visible pipe and Decoshield in the home for leaks. Check for water dripping or running down the walls. Look for drops forming at places where sprinklers are screwed into the pipe and at joints in the pipe. Check the connection between the sprinkler riser and the insulated hose.

There should be no drop in pressure readings over the test period. If the pressure is lower after the

9 test, look carefully for leaks. Even a single drop can cause a pressure loss. Common places for leaks: the connection between the TPS hose and the sprinkler pipe, the fittings where the

Starting Pressure

After the pump stops running, record the pressure shown on the pressure gauge. This is the sprinklers are screwed into the system, valves that may not be fully closed, fittings or joints inside the TPS.

After repairing any leaks, repeat steps 3 through 9. Continue checking for leaks and testing until

Wait one hour. Record the pressure shown on the pressure gauge.

Ending Pressure

After pressure is recorded and the pump alarm sounds, CLOSE the pump test valve slowly.

The pump will run for approx. 2 minutes and will shut off.

Pressure pressure that will be used for the test.

Switch the circuit breakers that feed the TPS and pump ON. (Breakers in the main electrical of water is discharged (this bleeds the any air in the pump).

Open DISCHARGE CONTROL VALVE AND PUMP SUCTION VALVE, ENSURE SPRINKLER FILL

Refer to the photos in the following section for guidance for the locations of internal parts.

HIGH PRESSURE (PUMP PRESSURE) TEST for TALCO TPS UNIT

VALVE AND SYSTEM TEST VALVE ARE CLOSED. Open PUMP BLEEDER VALVE until a small amount

Open the SYSTEM TEST VALVE -- The pump will start and run, flowing water from the pump back

While the pump is running, record the pressure shown on the pressure gauge.

Pump Running step until the pump has stopped running.

on system pressure. It should turn off automatically in a few minutes. Do not proceed to the next into the tank. Allow the water to run until the alarm on the outside wall of the TPS sounds, start as soon as you turn that main disconnect to the on position powering up the unit, depending and turn the main disconnect switch on the control panel door to the on position. The pump may panel inside the MHU, the mechanical interlock on the rear of the outside of the MHU, and the circuit breakers inside the TPS). Close the door to the control panel inside the TPS enclosure thereby testing the alarm.

Valve are normally in the closed position.

operation. Sprinkler Fill, Pump Test Valve, Pump Bleeder Valve, Riser Drain Valve and Tank Drain Control Valve and Pump Suction Control Valve are placed in the open position for normal When the system passes the pressure test, set up all valves for normal operation. Pump Discharge the pressure drop over a one-hour time is zero.

Open the pump discharge control valve. (Valves are labeled according to their func on) Hook a garden hose up to the fill port at the top of the riser.( riser/discharge hose fill connec on) Open the riser/discharge valve and turn on the garden hose filling the discharge side of the pump and the sprinkler hose ven ng air from the highest available point in the MHU.

When hose and piping are full , leave water for at least

10 minutes for pressure to stabilize, close fill valve and turn off hose and disconnect. Check MHU for leaks before proceeding and check to ensure pipe cap on sprinkler drain has been removed, open sprinkler drain valve until a small amount of water flows out and close valve.

Open the suc on valve located below the pump and on the back side of the suc on piping as shown in the photo to the le . When length of valve handle is in line with the pipe it is open, when the length of the handle is across the run of the piping it is shut.

Fill the water storage tank to between the MAX FILL and the MIN FILL lines that is labeled on the tank.

Hook up a 3/4 inch garden hose to the connec on shown in the photo to the le . When full shut off the hose and disconnect the hose.

There are two fans mounted on top of the water storage tank. As you face the TPS unit, just to the right of the storage tank fill connec on is a flexible duct hose. (Fan 1) Gently pull the air circula on duct

(keeping one hand on the connec on to the fan) and extend the duc ng down to the floor of the enclo-sure. When the air temperature reaches 80 degrees F for longer than 5 seconds the fan will start and circu-late the warmer air in the top of the enclosure to the bo om of the enclosure un l the temperature reach-es 75 degrees for 5 seconds and will then shut off. No adjustment is necessary as this fan is controlled by the PLC in the control panel.

Photo on the le shows the nipple that is threaded into the top of the pump casing. There is a 1/4” valve

(pump suc on bleeder valve)) at the top of this nip-ple. Open valve un l you get a very small amount of water discharging from this valve, then close the valve, this primes the pump casing up to the check valve.

Open the control panel, 4 circuit breakers are locat-ed in the top right side of the panel. Photo of break-ers are shown to the le . Flip all breakers to the on posi on.

In the control panel, top le hand side is where the back up ba ery is mounted next to the outlet as shown in the photo to the le . Connect the black wire to the black terminal and the red wire to the red terminal. Close and latch the control panel shut and ensure the shipping foam block has been removed from the outer front door of the panel. Save the foam block for de-commissioning.

A er the tank and discharge hose has been filled and the pump has had the air bleed off the casing plug in the TPS plug into the MHU receptacle.

NOTE: All valves have a tag label with their func‐ on indicated.

Ensure the pump discharge valve near the top of the pump riser piping is open. Turn the main dis-connect switch to the on posi on. Pump will start if the pressure in the system is below the cut in point ( approx. 30 psi) and will run for approx. two minutes if pressure is maintained and will then shut off. When the pump runs and is flowing wa-ter flow alarm will sound and the fire alarm light will come on. The audible alarm can be silenced by pressing the silence bu on that is mounted below the alarm panel mounted on the outside of the enclosure. The light will con nue to be flash and the audible alarm will reac vate in one hour if the condi on is not corrected (no flow detected by the flow switch).

If the pressure is high enough the pump will not start. To test the opera on of the pump open the test valve located to the right and just below the pressure gauge as shown in the photo to the right.

Opening this valve will allow water to flow through the black tube (black tube just below the test valve) that is connected back to the tank. When the pump starts and the water flows it will ac vate the alarm.

When the pump runs smoothly close the test valve slowly and it will stop the flow from the pump even though the pump is s ll running and the alarm will de-ac vate. The pump will run for approx. 2 minutes and shut off if pressure is above the start pressure setting (approx. 30 psi).

Heater and Fan 1: The heater and fan 1 is ac vated when the enclosure temperature drops to 42 degrees F or below for 5 seconds. The heater and fan will remain on un l the temperature rises to 45 degrees F or above for 5 seconds. Maintenance alarm sounds at 37 degrees F.

Water Flow Alarm: When the flow switch has closed for 3 seconds, the fire alarm light and audible alarm terminals will be ac vated. The fire alarm light will remain on un l the water flow switch is opened. Pressing the silence bu on will silence the audible alarm and will reac vate in one hour if condi on is not corrected. NO ADJUSTMENT IS NECESSARY

Heat Trace Low Temperature Alarm: When the temperature from the heat trace probe reads below 40 degrees F for more than 5 seconds, the common alarm light and audible alarm will be ac vated. The common alarm light will remain on un l the temperature rises to 45 degrees. Pressing the silence bu on will silence the audible alarm and will re-ac vate in 12 hours if the condi on is not corrected.

(NO ADJUSTMENT IS NECESSARY)

Pump: The pump will ac vate when the pressure switch closes for longer than 2 seconds. The pump will remain on for at least two minutes and un l the pressure switch is opened. The pump will also ac vate when the “pump on” push bu on is pressed. (NO ADJUSTMENT IS NECESSARY)

Heat Trace: The heat trace is ac vated when the heat trace probe temperature drops to 42 degrees F or above for 5 seconds. Maintenance alarm sound at 37 degrees F.

Fan 2: Fan 2 will ac vate if the enclosure temperature probe rises above 80 degrees F for longer than 5 seconds. The fan will remain ac ve un l the temperature drops below 75 degrees for 5 seconds.

By pressing the OK on the PLC in the picture above the display on the PLC will show current hose (top readout) and enclo-sure temperature (bo om readout).

Insulate Water Hose Connection

After verifying that the connection between the end of the TPS hose assembly and the sprinkler riser is leak free, install insulation around the connection. Ensure that the entire pipe and hose are insulated.

Spare pipe insulation is shipped with the TPS. (If insulation is not included in the TPS, locally procured insulation for 1½ inch pipe insulation that provides at least 1” of insulation all around the pipe, or locally procured R‐30 faced fiberglass batt insulation wrapped around the connection and overlapping the pipe insulation above and below (with the paper face outside) are acceptable for this purpose.) Securely fasten all insulation with tape. See Photo 3.

Photo 3. Water connection insulated and completed.

Final Setup

1. Check to be sure that the electric power is ON and that the TPS has been activated in accordance with the manufacturer’s instructions.

2. Perform a pump water flow test. Open the system test valve. Let the pump run until the FIRE alarm on the outside of the TPS activates. There should be both flashing light and loud sound from the alarm unit labeled “Call the Fire Department…” After checking the alarm, close test valve slowly. The pump should stop automatically after a few seconds.

3. Check that the heat trace is functioning. If the heat trace probe reads below 42 degrees F the heat trace should be operating and the cable should feel warm to the touch. Press the “OK” ” button on the SIEMENS controller to display the current hose temperature, which is the top readout, bottom readout is the enclosure temperature.

4. Close and lock the TPS door. Clean up the work area and remove all debris. Parts that are not used in the installation should be stored inside the TPS.

5. At the Mechanical Interlock on the rear of the MHU, remove the tabs on the switch handle that prevent a lock from being inserted into the handle. The tabs are scored and easily removed with a screwdriver or needle‐nose pliers. Photo 2 provides details.

6. Insert the padlock provided with the MHU into the switch handle to lock the switch in the ON position. The padlock uses the same key as the door on the TPS and the door to the water heater closet inside the MHU. Padlock should be located in a kitchen drawer or in the sprinkler parts box inside the MHU.

7. Install cover plates on each of the sprinkler heads inside the MHU. Follow the procedure in the instructions located further in this manual.

8. Mount the red sprinkler spare parts box inside the water heater closet. Use screws into studs.

9. Place the sprinkler spare parts in the red box inside the water heater closet. Spare parts that are shipped inside the cardboard box in the refrigerator should include one sprinkler, one cover plate, one metal wrench to be used on the sprinklers, and, in some cases, a tool to remove the Decoshield pipe cover.

10. Close and lock the water heater closet.

11. The keys to the TPS, Mechanical Interlock, and Water Heater Closet are all the same. These keys are NOT to be left for the occupant. Keys should be turned over to the maintenance contractor.

12. Leave…