Price Acutherm ST-C User manual

WIRELESS WALL ADJUSTER –ST FIELD ASSEMBLY
Page 1 of 3 Adjuster-W ST Field Assy 170505.doc
INSTRUCTIONS FOR FIELD ASSEMBLY OF WIRELESS WALL ADJUSTER
OPTION INTO EXISTING MODEL ST THERMA-FUSER DIFFUSERS
Models: ST-C VAV cooling only
ST-HC VAV cooling and VAV heating
Note: The Wireless Wall Adjuster uses a Master and
Secondary diffuser wiring scheme. These instructions
are for field assembly of the Master and Secondary
diffusers. For installation details and wiring between
diffusers, please see Form 040.204 Wireless Wall
Adjuster Installation and Operating guide.
1. Unlatch the hinged appearance panel.
Note: If more space is required to drill the holes, the
diffuser mechanism may be removed from the
housing by unscrewing the four (4) screws.
2. Drill a 5/16” hole in the top of the housing on the
same side as the thermostat (see Fig. 1 and 2).
3. Drill a 1/4” hole in the top of the scoop (see Fig. 2).
4. Insert the grommet in the 5/16” hole in the
housing/terminal box.
Note: If the diffuser mechanism was removed,
reassemble it to the housing using the four (4)
screws. A small amount of silicon is installed on
the screws to prevent movement due to vibration
during shipping. This silicon does not need to be
replaced unless the unit is to be shipped.
5. Adjust the cooling (and heating) thermostat set
point to 76˚F/24˚C.
Caution: For proper operation of the Wireless Wall
Adjuster, the set point(s) must remain at
76˚F/24˚C.
6. Mount the wireless diffuser board using the
adhesive backed mounting strips on the back side of
the diffuser housing just below the 5/16” hole in the
housing (see Fig. 3).
DRILL
5/16Hole
3/4
Fig. 1
DRILL ¼" Hole
5/16" Hole
Fig. 2
Fig. 3

WIRELESS WALL ADJUSTER –ST FIELD ASSEMBLY
Page 2 of 3 Adjuster-W ST Field Assy 170505.doc
7. Prepare resistance heaters following Heater Sub-
Assembly Instructions (attached). Slip shrink band
and heater over the thermostat. Locate the space
between the ends of the heater at the bottom of the
thermostat (where the heat will be applied to the
shrink band). One edge should be against the hub
of the thermostat. Heat the shrink band with a hair
dryer until the band is tight.
8. Rout the wires through the 1/4” hole in the scoop
and through the grommet in the 5/16” hole in the
housing (see Fig. 4).
9. Connect the red wire(s) and the black wire(s) to
terminals labeled INTERNAL HEATER (see Fig. 5).
10. Route the plug connector on the ribbon cable for the
button/label through the grommet in the 5/16” hole
in the housing.
11. Connect the plug connector to the three pin
connector on the wireless diffuser board smooth
side up.
12. Secure the adhesive backed button/light to the
room side of the diffuser housing near the edge
where it can be easily reached for the joining
process to follow (see Fig. 6).
13. Fit the cover onto the wireless diffuser board.
14. Fold up and latch the appearance panel.
For installation and maintenance instructions please
see Form 040.204 Wireless Wall Adjuster Installation
and Operating guide.
WRAP
Fig. 4
1 2
ON
ACUTHERM, LLC ADJUSTER-W (DIFFUSER UNIT) ASSY: 608-2060-REV
SWITCHES
1. N THERM Y
2. NORM - ST
ROOM COM TEMP
DUCT DUCT
INTERNAL
HEATER
Connect red
and black
wires here
(not used)
Connect button/light
smooth side up
Fig. 5
Fig. 6

RESISTANCE HEATER FIELD ASSEMBLY
Page 3 of 3 Adjuster-W ST Field Assy 170505.doc
Resistance Heater
Sub-Assembly Instructions
With the flag away from
you and pointing upwards
Curl the flag toward the
right.
Do not curl toward the left
as it will change the
resistance.
Slip the shrink band over
the curled flag.
Slide the shrink band/flag
combination over the
thermostat flush with the
hub of the thermostat.
`
1000 OHM HEATER