Systemair OPTIMA-RES-A User manual

Air Distribution Products

OPTIMA-RES-A

Residential VAV System Box

Data Sheet

Variable Air Volume Controllers | 1 / 22

Table of Contents

Description .......................................1

Design ..........................................1

Controls .........................................2

Factory Settings ................................2

Basic Functional Characteristics ...................2

Basic Parameters and Features ....................2

Master/Slave Conguration .......................2

Dimensions ......................................4

Ordering Code ....................................4

Accessories .......................................5

RC-C3DOC .....................................5

MZ3-Touch ....................................5

EC-Basic – CO2 + Temperature Room Controller ......6

CO2RT ........................................6

ZTH-EU .......................................6

Technical Parameters ..............................7

Solutions for Room Controls

with VAV Ventilation Systems ........................10

MZ3-Touch ...................................11

Ventilation Control Panel .........................11

EC-Basic – CO

RC-C3DOC .....................................15

+ Temperature Room Controller .......13

2

Installation, Maintenance & Operation .................22

Transport & Storage ................................22

Supplement ......................................22

Related Products ..................................23

Good to
know

Current information on all
products is available at
design.systemair.com

Variable Air Volume Controllers | 1 / 24

Description

OPTIMA-RES-A is a compact system of supply
and extract VAV controllers intended for ventilation
control of residential premises. The basic functionality

is continuous supply and extract air ow volume control

in master/slave operation mode. Additionally, it can be
switched into override operation modes like open
or close damper, or minimum or maximum air ow
volume control.

Highlights

• Complete VAV supply and extract master/slave solution

• AC 230 V power supply

• Electrical safety elements and connection terminals

on board

• Noise attenuators included

• Fit for installation on surface or into gypsum walls

or ceilings

• VAV controllers can be easily detached and mounted

in other supply/extract conguration

Design

The system of OPTIMA-RES-A system is encased
in a galvanised steel box. The system consists of:

• One supply and one extract variable OPTIMA-R air ow

controller in a circular galvanised steel body

• Electric part with power supply and control circuitry

• Acoustic attenuation

The VAV controllers are mounted to the circular duct
connections by sleeves, so the VAV controllers are easily
removable. The system box is equipped with cable pass
diaphragms for cables related to power supply, setpoint
control signal, feed-back signal and override signal.
These cables shall be connected by a service person
on site. The corresponding terminals are available
according to the wiring diagram.

List of Accessories

Detailed information about accessories
for OPTIMA-RES-A is available

• RC-C3DOC: Room Controller

• MZ3-Touch: Ventilation Control Panel

• EC-Basic – CO2 + Temperature Room Controller

• CO2RT: CO

• ZTH-EU: Service Tool for VAV Controllers

Room Transmitter

2

on page 5.

2 / 24 | Variable Air Volume Controllers

Controls

The residential VAV system is equipped with BLC4 type compact controllers in the master/slave connection.
The controllers use analog input for the setpoint signal and analog output for the feedback signal. The type of the
signals is DC 0 V ... 10 V. The VAV controllers are factory calibrated as standard to the air volume indicated in the table
below or, upon request, they can be adjusted to site required settings of the V
also be readjusted on site with the ZTH-EU

hand held service tool. If specic air volumes for V

required, they must be indicated in the ordering code or noted in the order for adequate calibration in the factory.

Factory Settings

min

/V

range. The air volumes can

max

and V

min

max

would be

Size V

(mm) (m

100 57 16 254 71 311 86

125 88 24 398 111 486 135

160 145 40 651 181 796 221

@ 2 m/s V

min

3

/h) (l /s) (m3/h) (l /s) (m3/h) (l /s)

@ 9 m/s V

max

@ 11 m/s

nom

Basic Functional Characteristics

Controller type: OPTIMA-RES-A-…BLC4

Basic Parameters and Features

Flow volume adjustment setpoint signal:
Analog input DC 0 V … 10 V. The Systemair MZ3-Touch room control device is primarily foreseen to be connected

to the analog input. It can operate in automatic mode, continuously controlling the air ow volume dependent from

temperature, VOC or CO
four discrete steps between the preset V
Other control devices with 0 V ... 10 V control output can also be used, e.g. Systemair RC-C3DOC.

Controller parameters setup tools: Belimo ZTH-EU

concentration. If switched to manual mode, the air ow setpoint can be adjusted manually in

2

min

and V

of OPTIMA-RES-A.

max

Feedback signal (actual air ow volume): Analog output DC 0 V … 10 V

Power supply (each VAV controller, secured by transformer on board):

AC 24 V/50 Hz DC 24 V
4 VA 2 W

Power supply (whole system): AC 230 V/50 Hz

Protection class (closed system box): IP40

Master/Slave Conguration

The VAV system is congured as master/slave. The supply air VAV controller (the master) reads the ow volume

setpoint from an external source like e.g. a room controller or manual setpoint dial. The control range (V

the master VAV controller can be adjusted at the factory or on site with the ZTH-EU conguration tool. The feedback
signal from master VAV represents the actual measured air ow volume. This signal is connected to the extract air
VAV controller (the slave) as the setpoint for the air ow volume. So the air ow volumes of supply and extract air are

always equal with high reliability.

min

, V

max

) of

Variable Air Volume Controllers | 3 / 24

Master (Supply Air) VAV Controller Setup

V

adjustable between 0 and V

min

V

adjustable between V

max

min

nom

and V

. Lowest possible adjustment is 20% of V

nom

nom

.

Slave (Extract Air) VAV Controller Setup

V

adjusted to 0, shall not be changed.

min

V

adjusted equal V

max

, shall not be changed.

nom

Setpoint/Feedback Signal and Air Flow Volume Calculation for VAV Controller

Setpoint, UC : 0 V ... 10 V

V

max

/h)

3

q (m

V

min

0 10

UC (V) =

: Air ow volume setpoint signal value (range DC 0 V … 10 V)

U

c

UC (V)

V

q - V

- V

max

min

· 10

min

q: Air ow volume

Feedback, U: 0 V ... 10 V

10

U (V)

0 V

q (m3/h)

U (V)

q =

10

· V

nom

nom

: Minimum adjusted air ow volume (lower limit of control range)

V

min

: Maximum adjusted air ow volume (upper limit of control range)

V

max

U: Measured air ow volume feedback signal value (range DC 0 … 10 V)

: Nominal air ow volume calibrated in factory – not adjustable.

V

nom

4 / 24 | Variable Air Volume Controllers

Dimensions

1

H

H

W

W

1

L

L

1

øD

K

Fig. 1: Dimensions of the OPTIMA-RES-A

Tab. 1: Dimensions of the OPTIMA-RES-A

DN øD K W W

(mm) (kg) (l)

100 98 250 495 555 200 225 1080 1170 25 147

125 123 280 550 610 235 260 1180 1270 29 202

160 157,5 320 640 700 282 306 1190 1280 35 275

1

H H

1

L L

1

m v

Ordering Code

OPTIMA-RES-A-

100

Nominal size

Control range setup

ø (mm)

V

... V

min

max

(m3/h)

Example of the Ordering Code

OPTIMA-RES-A-125-130-310

Residential VAV control system of size 125, control range 130 m³/h (V

125
160

) up to 310 m³/h (V

min

max

)

Accessories

RC-C3DOC

Room Controller

Art. No.: 27142

Variable Air Volume Controllers | 5 / 24

Complete pre-programmed room controller intended to control heating, cooling, CO
in a zone control system.

and other physical parameters

2

MZ3-Touch

Ventilation Control Panel

Art. No.: 92690

• Positioner and controller for comfort ventilation with a touch panel.

• Design according to Feller EDIZIOdue®.

• Manual operation with 4 steps.

• AUTO operation: The controller activates the ventilation based on controls curve.

• Automatic reset of the party air level.

• One DC 0 V … 10 V controls output to control the ventilation system. One DC 0 V … 10 V input to

measure CO

or other sensors.

2

6 / 24 | Variable Air Volume Controllers

EC-Basic – CO2 + Temperature Room Controller

Art.No. 24808

• For simultaneous control of the room temperature and the CO

of the value with the higher control difference.

• Pre-adjustable heating or cooling control loop.

• One DC 0 V ... 10 V VAV control output.

concentration (on-board sensors) based on priority

2

CO2RT

Room Transmitter

CO

2

Art. No.: 13704, 14357

Room sensor for measuring carbon dioxide concentration in indoor environments.

ZTH-EU

Service Tool for VAV Controllers

Art. No.: 27655

Conguration and setup tool for VAV controllers.