Carrier 30RY/RYH, 30RA/RH Description of the Temperatures menu, Description of the Pressures menu

Models: 30RY/RYH 30RA/RH

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4.3.6 - Description of the Temperatures menu

4.3.6 - Description of the Temperatures menu

4.3.7 - Description of the Pressures menu

TEMPERATURES MENU [2]

ITEM

FORMAT

UNITS

COMMENTS

0

±nn.n

°C

Water heat exchanger entering water tempera-

 

 

 

ture

1

±nn.n

°C

Water heat exchanger leaving water tempera-

 

 

 

ture

 

 

 

 

2

±nn.n

°C

Outdoor temperature

 

 

 

 

3

±nn.n

°C

Saturated discharge temperature, circuit A

 

 

 

 

4

±nn.n

°C

Saturated suction temperature, circuit A

5 [1]

±nn.n

°C

Saturated discharge temperature, circuit B

6 [1]

±nn.n

°C

Saturated suction temperature, circuit B

7 [1]

±nn.n

°C

Defrost temperature, circuit A

8 [1]

±nn.n

°C

Defrost temperature, circuit B

 

 

 

 

9 [1]

±nn.n

°C

Chilled water system temperature. Used for

 

 

 

master/slave control.

 

 

 

 

1This item is displayed in certain unit configurations only

2Access to this menu is read-only.

PRESSURES MENU [2]

ITEM

FORMAT

UNITS

COMMENTS

0

nnnn

kPa

Discharge pressure, circuit A.

 

 

 

Relative pressure.

1

nnn

kPa

Suction pressure, circuit A.

 

 

 

Relative pressure.

 

 

 

 

2 [1]

nnnn

kPa

Discharge pressure, circuit B.

 

 

 

Relative pressure.

 

 

 

 

3 [1]

nnn

kPa

Suction pressure, circuit B.

 

 

 

Relative pressure.

1This item is displayed in certain unit configurations only.

2Access to this menu is read-only

4.3.8 - Description of the Setpoints menu

SETPOINTS MENU [2]

ITEM

FORMAT UNITS

RANGE

COMMENTS

0

±nn.n

°C

See table below

This item lets you display and modify Cooling setpoint 1*

1

±nn.n

°C

See table below

This item lets you display and modify Cooling setpoint 2*

2

nnn

°C

See table below

This item lets you display and modify Heating setpoint 1*, only displayed for heat pumps.

3 [1]

nnn

°C

See table below

This item lets you display and modify Heating setpoint 2*, only displayed for heat pumps.

 

 

 

 

 

4 [1]

nn.n

°C

See table below

This item lets you display and modify Heating setpoint 3*, only displayed for heat pumps.

 

 

 

 

 

5 [1]

±nn.n

°C

3.8 to 50

Automatic changeover threshold, cooling mode. This item lets you display and modify the outdoor

 

 

 

 

temperature threshold at which the unit changes over in cooling mode. See section 5.2. Displayed only if

 

 

 

 

the auto cooling/heating changeover function is selected.

 

 

 

 

 

6 [1]

±nn.n

°C

0 to 46

Automatic changeover threshold, heating mode. This item lets you display and modify the outdoor

 

 

 

 

temperature threshold at which the unit changes over in heating mode. Displayed only if the auto cooling/

 

 

 

 

heating changeover function is selected and if the unit is a heat pump. The heating threshold must be

 

 

 

 

3.8°C below the cooling threshold, otherwise the new setpoint will be rejected.

 

 

 

 

 

7

nnn

%

0 to 100

Demand limit 1 setpoint. Limitation by volt-free contact. This item is used to define the maximum

 

 

 

 

capacity that the unit is authorised to use, if the demand limit contact(s) activate limit 1. Contact control

 

 

 

 

depends on the unit type and configuration. See sections 3.6.4 and 3.6.5.

8 [1]

nnn

%

0 to 100

Demand limit 2 setpoint. Limitation by volt-free contact. This item is used to define the maximum

 

 

 

 

capacity that the unit is authorised to use, if the demand limit contact(s) activate limit 2. Contact control

 

 

 

 

depends on the unit type and configuration. Displayed and used only for dual-circuit units. See section

 

 

 

 

3.6.5 for the contact control description.

9 [1]

nnn

%

0 to 100

Demand limit 3 setpoint. Limitation by volt-free contact. This item is used to define the maximum

 

 

 

 

capacity that the unit is authorised to use, if the demand limit contact(s) activate limit 3. Displayed and

 

 

 

 

used only for dual-circuit units. See section 3.6.5 for the contact control description.

 

 

 

 

 

10

±nn.n

°C/min

0.1 to 1.1

Cooling or heating ramp loading rate. This parameter is only accessible if the ramp function is

 

 

 

 

validated in the User Configuration 1 menu. This item refers to the rates of temperature drop in °C in the

 

 

 

 

evaporator. When capacity loading is effectively limited by the ramp, mode 7 is active.

11 [1]

±nn.n

°C

See table below

Zero reset threshold, cooling mode**

12 [1]

±nn.n

°C

See table below

Full reset threshold, cooling mode**

13 [1]

±nn.n

°C

See table below

Full reset value, cooling mode**

14 [1]

±nn.n

°C

See table below

Zero reset threshold, heating mode**

15 [1]

±nn.n

°C

See table below

Full reset threshold, heating mode**

16 [1]

±nn.n

°C

-16 to 16

Full reset value, heating mode**

1This item is displayed in certain unit configurations only.

2All points contained in this table can be modified.

*Those setpoints can be used for entering or leaving water temperature control. By default the unit controls the evaporator entering fluid temperature. Leaving fluid temperature control requires a parameter modification in the Service Configuration menu.

**These parameters are only accessible when reset based on OAT or delta T has been selected in the User Configuration 1 menu. See section 4.3.11.3 & 5.6.2.

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Carrier 30RY/RYH, 30RA/RH manual Description of the Temperatures menu, Description of the Pressures menu