Terminal unit
UTNA 015÷150
Cooling capacity: 7.2÷108 kW - Heating capacity: 10.5÷128.7 kW
Complete composition
• Module
option with
BRUSHLESS EC
fan
KSER
KB2R
SIL
PRV
Damper
Coil
additional
heating
Plenum
with silencer
Steam
producer
• High efficiency
filters F7
• Direct
expansion
coil even in
reversible
version
KPBC
Panel with circular
nozzles
PMA
Plenum
for flow/
intake
BA
Coil
module
PMA
SV
Fan
module
MUV
Plenum
with humidifier
Plenum
for flow/
intake
KPBM
Panel with flow
nozzle
Web code: UTA1 - Web code accessories: UTA2
Modular and ductable air handling terminal units
Construction features
• Air handling terminal unit: with modules for horizontal installation with or without
ducting.
• Structure: made of galvanised sheet steel, with fully removable pre-painted
sheet steel panelling, complete with self-extinguishing thermo-acoustic
insulation.
• BA 2R, BA 4R, BA 6R module: complete with pleated filter in 2 sections with
degree of efficiency G3, can be slid out in all directions; heat exchanger with
finned coil, with 2 or 4 or 6 rows with reversible right-hand connections;
condensation drain pan with natural drainage.
• BA DX module:direct expansion 4-row heat exchanger with finned coil for R410a
refrigerant in cooling only version or to be combined with a reversible heat
pump; condensation drain pan with natural drainage.
Combined with the SV-EC Module.
• SV fan module:complete with centrifugal fan with double inlet with motor (IP55)
directly coupled, 3-speed for models 015-038; 2-speed for model 051; with
4-pole single speed motor (4/6 or 4/8 poles on request) coupled by means of
trapezoidal belt and variable pulley for models 078-150.
• SV-EC fan module option: complete with a fan with a new brushless-DC
motor with an external rotor up to model 051; with inverter adjustable
motors for models 078-150.
• Electrical panel: standard for models 051-150; accessory for models 015-038.
Accessory modules
• Inlet/outlet plenum with pre-cut side outlets (PMA).
• Plenum with absorbent cartridge silencer to be placed for inlet or outlet (SIL).
• Plenum with steam humidifier and external electric generator (MUV - PRV).
Module with F7 high efficiency filter (combines with SV-EC).
Accessories supplied separately
• Additional water heating coil to be inserted in module BA.
• Additional electrical heater from 1.5 kW to 36 kW, to be inserted in module BA.
• Droplet eliminator for models 078-150, to be inserted in module BA.
• Combined fresh air damper (max 25%) and re-circulation, to be attached to the
PMA inlet plenum.
• Solid pre-cut panel for connection to duct, to be attached to the PMA inlet/outlet
plenum.
• Panel with rectangular outlet nozzle with double row of adjustable fins, to be
attached to PMA flow plenum.
• Panel with circular nozzles, to be attached to PMA inlet/outlet plenum (only for
models 015-051).
• Manual control for KSER damper.
• Electrical panel in waterproof box (IP55 for UTNA 015-038).
STANDARD Controls
For wall mounting installation
➔ Panel with speed and summer/winter switch.
➔ Panel with room thermostat, summer/winter switch, speed switch, ON/OFF
valve control.
➔ Humidistat panel.
➔ Electronic panel with automatic summer/winter
changeover for 2-pipe systems.
➔ Electronic panel with automatic summer/winter
changeover and automatic speed regulation for 2-pipe systems with electric
heater or 4-pipe systems.
iDRHOSS Controls
➔ Wall mounted receiver with remote control.
➔ Electronic control panel for wall mounting.
➔ Wall-mounted recessed electronic panel
For installation on machine.
➔ Master/slave electronic board.
➔ Temperature probe for hot row.
➔ Module for ON/OFF valves and electrical heater management.
➔ Serial interfaces for connection to BMS (proprietary protocol, Modbus RTU).
➔ Serial converters (RS485/RS232, RS485/USB) in case of centralised unit
management.
➔ Serial interface (CAN-bus - Controller Area Network) for the iDRHOSS system.
Key: ❖ Factory fitted ➔ supplied loose
158
029
038
051
078
107
130
150
20,7
25,8
35,2
57,5
82,6
92,7
106,0
❶ Cooling capacity
BA 4R
kW
7,2
8,8
13,9
17,3
21,4
41,8
60,6
67,8
77,1
❷ Heating capacity
BA 4R
kW
10,5
13,4
19,3
24,6
32,4
54,4
77,9
88,9
101,6
❶ Cooling capacity
BA 6R
kW
9,9
12,5
17,9
22,4
30,9
55,6
82,7
94,4
108,0
❷ Heating capacity
BA 6R
kW
13,3
17,7
24,0
30,6
42,5
67,3
96,7
112,3
128,7
Electric heater power
230V-1ph-50Hz
kW
1,5-3-4,5
3-4,5-6
4,5-6-9
6-9-12
–
–
–
–
–
400V-3ph-50Hz
kW
1,5-3-4,5
3-4,5-6
4,5-6-9
6-9-12
9-12-18
12-18-24
18-24-36
18-24-36
24-36
❼ Cooling capacity
BA DX
W
11,7
16,0
19,0
25,2
34,5
47,3
55,6
61,0
68,0
❽ Heating capacity
BA DX
W
12,8
17,4
19,6
26,0
36,1
49,7
58,3
64,7
72,1
MAX
m³/h
1.800
2.640
3.220
4.260
6.120
8.580 (*)
11.770 (*)
14.300 (*)
16.500 (*)
❹ Standard fan speed air flow
MED
m³/h
1.370
2.240
2.400
3.500
–
–
–
–
–
MIN
m³/h
1.060
1.480
1.560
2.850
4.390
–
–
–
–
❹ Fan static pressure speed Std.
MAX
Pa
90
90
90
90
130
170
160
145
140
MAX
dB(A)
50,9
55,6
54,9
59,8
61,5
59,7
61,7
65,4
61,9
❺ Standard fan speed sound pressure MED
dB(A)
44,3
50,2
48,3
55,7
–
–
–
–
–
MIN
dB(A)
37,1
42,1
38,7
51,4
54,4
–
–
–
–
W
370
700
700
1.250
1.850
1.500
1.500
2.200
3.000
m³/h 1000-2000 1400-2700 1500-3200 2700-4300 3500-6000
-
-
-
-
❹ Standard fan absorbed power
EC brushless fan air flow
Static pressure speed
Pa
150
150
150
150
150
-
-
-
-
Electric power supply
V-ph-Hz
230-1-50
230-1-50
230-1-50
230-1-50
400-3-50
400-3-50
400-3-50
400-3-50
400-3-50
015
020
029
038
051
078
107
130
150
928
928
1.228
1.228
1.328
1.658
2.058
2.058
2.058
1.018
SIZES AND WEIGHTS
W - Width
mm
H - Height
mm
398
398
463
518
568
768
918
918
PMA - Depth
mm
370
370
435
490
540
740
890
890
990
BA - Depth
mm
645
645
645
645
645
910
910
910
910
SV - Depth
mm
370
370
435
490
490
1.040
1.040
1.040
1.040
SIL-MUV - Depth
mm
960
960
960
960
960
1.040
1.040
1.040
1.040
kg
51
51
68
71
79
140
200
200
220
❻ UTNA weight
❶ Air: 27°C D.B.; 19°C W.B. - Water: 7/12°C. Maximum speed.
❷ Air: 20°C - Water: 50°C, flow rate like in cooling. Maximum speed.
❸ Air: 20°C - Water: 70/60°C.
❹ 4-row coil (BA 4R) and filter G3.
❺ At 3 m from the point of air outlet, with open outlet.
❻ Empty weight BA 6R.
❼ Temperature inlet air 27°C; 19 W.B.; MAX. speed
❽ Coil temperature inlet air 20°C; MAX. speed
(*) Belt transmission with variable ratio.
WATER CHILLERS
HEAT PUMPS
Air-cooled
Centrifugal fans
WATER CHILLERS
HEAT PUMPS
Water-cooled
Condenserless units
TERMINAL UNITS
Details under the following conditions:
INDUSTRIAL &
PROCESS COOLING
020
14,2
EXP
Polyvalent systems
015
11,3
CONDENSING UNITS
kW
SYSTEM ACCESSORIES
BA 2R/KB2R
FAN COIL CONVECTORS
UTNA MODEL
❸ Heating cap. of add. coil
159
Air-cooled
Axial fans
DUCTABLE UNIT
WATER CHILLERS
HEAT PUMPS
INDOOR
INSTALLATION
Terminal unit
UTNA 015÷150
Cooling capacity: 7.2÷108 kW - Heating capacity: 10.5÷128.7 kW
BA
SV
Coil module
Fan module
Basic
composition
Web code: UTA1 - Web code accessories: UTA2
Modular and ductable air handling terminal units
Full Control Kit
The Full Control kit allows integrated management of all the functions in the UTNA,
guaranteeing total control of room comfort in a simple and complete manner:
• Easy installation: all the components are pre-assembled, wired and
tested by Rhoss.
• Easy to use: intuitive and user friendly functions and menus.
• Weekly time schedule that can be set.
• Easy start up: elements are pre-calibrated and pre-set in the factory.
The following functions are present according to the selected machine
composition:
• S1: damper control combined with outdoor air/recirculation actuator (with KSER).
• PDP: dirty filters signal differential pressure switch (standard).
• TAG: mixed coil antifreeze thermostat management (with BA2R; BA4R; BA6R).
• TM: air flow limit temperature probe (standard).
• TUAMB: room temperature/humidity probe for air unit set-point management
with MUV and PRV.
• V1: mixed coil fluid regulation kit with 3-way valve and servo-command (with
BA2R; BA4R; BA6R).
• V2: post-heating coil fluid regulation kit with 3-way valve and servo-command
(with KB2R).
• VDX: direct expansion coil regulation.
• RE: additional electrical heater regulation (with KR).
• PRV: modulating steam humidifier management (with MUV and PRV).
• VM: flow fan management (standard).
• VM_EC: BRUSHLESS EC Motor flow fan management.
• RU: ambient control panel (standard).
• QE: power and regulation electrical panel (standard).
• Interface: the units are directly interfaced via Modbus RTU protocol.
TERMINAL UNITS
FAN COIL CONVECTORS
SYSTEM ACCESSORIES
CONDENSING UNITS
UTNA VM-EC (DX version)
EXP
Polyvalent systems
INDUSTRIAL &
PROCESS COOLING
161
WATER CHILLERS
HEAT PUMPS
Air-cooled
Axial fans
WATER CHILLERS
HEAT PUMPS
Air-cooled
Centrifugal fans
Water-cooled
Condenserless units
UTNA VM
WATER CHILLERS
HEAT PUMPS
INDOOR
INSTALLATION
DUCTABLE UNIT