Install Instructions

ManualsBrandsBeacon Morris ManualsHeating SuppliesOutlet Grille w/ 2 Screws for K84 Twin-Flo III

INSTALLATION INSTRUCTIONS • TYPE K

TFII-15

J17-63967

Beacon/Morris

TWIN-FLOIII

HEATER

GENERAL DESCRIPTION

TWIN-FLO III heaters are for use with forced hot water residential heating systems and consist of a copper tube,

aluminum ﬁ nned heating element, with an electric motor and blower of unique cross ﬂ ow design. Their purpose is to

deliver a comfortable stream of warmed air, at or near ﬂ oor level, and their construction is extremely compact so minimum

space is required for installation. The type K heater is primarily used in horizonal ﬂ oor installation, for example: under a

kitchen counter cabinet, or bathroom sink enclosure. They are ideal for radiant systems with the use of a low temperature

aquastat designed to turn the unit on at 110°F. Type W is for vertical mounting, fully recessed in the wall studs, with the

air discharged upward through a ﬂ ush mounted, louvered front panel. Type F is a surface mounted wall unit, with the

air discharged evenly through a louvered front panel in an upward direction. All types have heating elements with 1/2"

nominal (5/8 O.D.) copper tube connections, and 115V. electric blower motor, interwired with a 120°F (49°C) reverse acting

aquastat that prevents operation until hot water is circulating. These units are NOT intended to be used on one or two

pipe steam systems. See bottom of page 5. For gravity fed systems, it is recommended that a separate circulator pump be

installed for the kick space heater.

INSTALLING TWIN-FLO III TYPE K

1. Select a location under the bottom shelf of a cabinet that meets the minimum dimensions shown in Fig. 1.

2. CUT AN ACCESS PANEL THROUGH THE BOTTOM OF THE CABINET AT THIS LOCATION, LARGE ENOUGH

FOR INSTALLATION AND SERVICE. IT IS RECOMMENDED THAT THIS ACCESS PANEL BE CONSTRUCTED SO

ANNUAL CLEANING OF THE BLOWER FAN AND COIL FINS CAN BE EASILY ACCESSIBLE.

3. At this location, center and cut an opening in the toe-space riser 4'' high x 11'' long (Model K42 see Figure 1)

or 4'' high x 18'' long (Model K84 see Figure 2) or 4" high x 23" long (Model K120 see Figure 3).

4. Set the TWIN-FLO III in the space at ﬁ nished ﬂ oor level and check piping and wiring locations. The air outlet

should be facing but not extending beyond the toe-space riser at the opening. The air outlet should also be located at

the bottom portion of the 4'' toe-space riser (See ﬁ gure A) at ﬁ nished ﬂ oor level. Make sure the switch is accessible

through the grille openings. The front of the unit should ﬁ t ﬂ ush to the inside of the toe space riser.

5. Install the grille over the 4'' toe-space opening with the two screws provided.

6. If using the TWIN-FLO "Easy Connect" Flexible Hose Connection Kit, see those installation instructions.

7. Next, prepare the heating element for pipe connections (this procedure will also pertain to Model types W and F).

Remove the 3 screws from the electric conn. box. Unsnap (pull) the thermostat clamp from the return copper U-bend.

Holding down the top cover, remove the 4 element cover screws. Carefully remove this top cover noting the position of

the element and the neoprene side pad. Lift out the element for soldering and ﬁ ttings. Both ends are sized to accept

1/2'' solder ﬁ ttings. (Note required ﬁ ttings for one pipe and two pipe systems on page 4).

8. Replace the heating element in the bottom cover in the proper position. Place the neoprene side pad in position and

replace the top cover using the 4 screws. Tighten enough to keep the element in place between the covers. DO NOT

OVER-TIGHTEN!

9. Place the TWIN-FLO III under the cabinet and connect the piping and wiring. Make sure unit & outlet are free of any

dirt or debris prior to start up. Turn on the system, purge of air, check blower operation and check for any possible

leaks in the piping (run for 2 hrs. minimum). It should then be screwed to the ﬂ oor through the four resilient mounting

feet (2-inside electrical box and 2 external). Do not over-tighten screws. Secure top of electrical box.

ATTENTION: READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE, OR SERVICE

THE BEACON MORRIS TWIN-FLO III HEATERS! RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE.

INSPECT THE SHIPMENT IMMEDIATELY WHEN RECEIVED TO DETERMINE IF ANY DAMAGE HAS OCCURRED

DURING SHIPMENT.

PRIOR TO INSTALLATION, CHECK FOR ANY VISIBLE DAMAGE. MAKE CERTAIN THAT ANY LOOSE PARTICLES

ARE REMOVED (ESPECIALLY IN THE BLOWER ASSEMBLY AREA).

SAFE TO USE WITH POTABLE WATER.

03/2013

Summary of content (8 pages)

PAGE 1
TFII-15 J17-63967 TWIN-FLOIII HEATER ® Beacon/Morris INSTALLATION INSTRUCTIONS • TYPE K ATTENTION: READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE, OR SERVICE THE BEACON MORRIS TWIN-FLO III HEATERS! RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE. INSPECT THE SHIPMENT IMMEDIATELY WHEN RECEIVED TO DETERMINE IF ANY DAMAGE HAS OCCURRED DURING SHIPMENT. PRIOR TO INSTALLATION, CHECK FOR ANY VISIBLE DAMAGE.
PAGE 2
DIMENSIONAL DATA TWIN-FLO III TYPE K42 FIGURE 1 TWIN-FLO III TYPE K84 FIGURE 2 TWIN-FLO III TYPE K120 FIGURE 3 Dimensions shown in English and metric ( ). 2.
PAGE 3
ELECTRICAL CONNECTIONS CAUTION! For Supply Connections, use wires suitable for at least 194°F (90°C). All electrical connections must conform to local and national codes. A shaded pole motor is used to drive the Twin-Flo III blower on 115 -120 V. 60 hz. Since current drain is very small, wiring codes for short circuit protection only will apply. The motor is connected in series with a normally open aquastat in contact with the heating element.
PAGE 4
SYSTEM CONSIDERATIONS Beacon/Morris Twin-Flo III Heaters should be connected only to circulating hot water systems where at least 1 gpm water flow is expected. They are essentially small unit heaters, and will work on one or two pipe systems, or in a series loop where pressure and temperature drop can be tolerated (see capacity charts and piping diagrams). These units are not designed for use with steam systems. See bottom paragraph on page 7.
PAGE 5
DIRECTIONAL FLOW TEE INSTALLATION USING SCOOP OR VENTURI TEES When installing a Twin-Flo Kickspace heater it is recommended that a directional flow tee be installed on the return piping of the unit. For one pipe up feed systems, one tee installed on the return should be sufficient. For one pipe down feed systems, the application will require a tee on the supply and return piping. Series loop systems do not require scoop or venturi tees.
PAGE 6
Twin-Flo III Troubleshooting 1. If Kickspace heater does not turn on check below for possible solutions: A. Verify the following: a) Check to see if there is a call for heat • Turn up thermostat, wait for water to come up to temperature and unit blower/motor should turn on. b) Verify aquastat is clipped firmly to copper tube. Clip may become loose during shipping. Located under electrical box cover.
PAGE 7
REPLACEMENT PARTS LIST Description Motor-Fan Assembly Standard Aquastat Assembly (120° – 105°F) Low Temp. Aquastat Assembly (110° – 95°F) Heating Element 2 Speed Fan Switch Outlet Grille w/ screws (Model K only) (Black) Louvered Front Panel (Model W only) Louvered Front Panel (Model F only) Louvered Front Panel (Model FK only) Part No.
PAGE 8
LIMITED WARRANTY Twin–Flo III Heaters The “Manufacturer” warrants to the original owner at the original installation site that the Twin–Flo Kickspace Heaters (the “Product”) will be free from defects in material or workmanship for five (5) years from the date of shipment from the factory.