TF-HC THERMA-FUSER™ MODULE -
The only thermally powered terminal offering both VAV heating and VAV cooling. No uncomfortable
over heating during warm-up cycles plus temperature control for both VAV heating and cooling.
COANDA EFFECT
ENTRAINMENT EFFECT
INDIVIDUAL TEMPERATURE CONTROL
Each Therma-Fuser module is a VAV zone. The thermostats, actuator and damper are built into the diffuser. Temperature set points for both
heating and cooling are separately adjusted between 70°F / 21°C and 78°F / 26°C. It easily zones open offices.
SUPERIOR AIR DISTRIBUTION
Unlike the fixed opening diffusers used with VAV boxes, Therma-Fuser modules vary the discharge opening as they vary air volume. The
result is a constant discharge velocity with comfort benefits of higher throws, no dumping, better room air movement and uniform temperature
distribution - especially when turned down.
BETTER SENSES AVERAGE ROOM TEMPERATURE
Unlike wall thermostats, Therma-Fuser thermostats are never in the wrong location. They maintain average temperature within 1½ °F / 0.9° C
of set point by sensing secondary space air at all times. And secondary air is the return air of the space-the best place to sense the average
room temperature.
LOWEST COST PER ZONE OF CONTROL
A single trade can install Therma-Fuser VAV because it is self contained. When comparing total installed cost - including labor-systems with
Therma-Fuser VAV are clearly the lowest cost of any VAV alternative.
LOWEST ENERGY VAV TERMINAL
Therma-Fuser modules have the lowest pressure drop of any VAV terminal which allows low pressure systems and low energy fan motors.
Fan energy is further reduced by a variable speed drive when the system turns down. It saves refrigeration and heating energy because no
portion of the building is overcooled or overheated. No energy is required to operate the Therma-Fuser controls.
PERFORMANCE GUIDE
Nominal Inlet Diameter |
Inlet Static Pressure In. wg |
Maximum Flow cfm |
Maximum Flow |
25% Maximum Flow |
Throw - Feet
@Vt=50/100/150FPM |
NC |
Throw - Feet
@Vt=50/100/150FPM |
NC |
6" |
.05 |
100 |
6/4/3 |
<15 |
3/2/1 |
<15 |
.10 |
140 |
8/5/4 |
20 |
4/3/2 |
17 |
•.15 |
175 |
9/6/5 |
26 |
5/4/3 |
21 |
.20 |
200 |
9/7/6 |
31 |
6/5/3 |
24 |
.25 |
220 |
10/8/7 |
34 |
7/6/4 |
27 |
8" |
.05 |
160 |
8/6/4 |
<15 |
5/3/2 |
<15 |
.10 |
25 |
10/7/5 |
20 |
6/4/3 |
16 |
•.15 |
275 |
11/8/6 |
25 |
7/5/3 |
21 |
.20 |
30 |
12/9/7 |
30 |
8/6/4 |
25 |
.25 |
355 |
13/10/8 |
34 |
9/6/4 |
28 |
10" |
.05 |
260 |
9/7/5 |
15 |
7/6/4 |
<15 |
.10 |
370 |
11/8/6 |
23 |
9/7/5 |
18 |
•.15 |
450 |
13/10/8 |
27 |
10/8/6 |
22 |
.20 |
520 |
14/11/9 |
31 |
11/9/7 |
26 |
.25 |
580 |
15/12/10 |
34 |
12/10/7 |
29 |
12" |
.05 |
350 |
11/8/6 |
15 |
7/6/4 |
<15 |
.10 |
470 |
13/10/8 |
23 |
9/7/5 |
19 |
•.15 |
560 |
15/12/10 |
27 |
10/8/6 |
23 |
.20 |
640 |
16/13/11 |
31 |
12/10/8 |
27 |
.25 |
720 |
17/14/12 |
34 |
14/11/9 |
30 |
•Denotes nominal rating
NC based on Lw (10-12 watts reference)-10db
Tested in accordance with ANSI/ASHRAE 70-1991, ANSI S12.31, ARI 880-89, ISO 5219 and ISO 3741.
Metric performance guide available on request.
NOTES
1. |
Both fixed and adjustable minimum flow stops are available. |
2. |
For blow patterns reduce maximum four way air volume from the performance guide by:
Blow pattern |
Reduction |
3 way (D3) |
.78 |
2 way (D2, D2C) |
.56 |
1 way (D1) |
.34 |
|
3. |
The performance guide does not apply to Therma-Fuser modules with R-Ring ceiling plenum bypass. Use separate ratings. |
