Table 4 — Capacity Overrides

 

First Stage Setpoint

 

 

 

Second

Override

 

 

 

 

Stage

 

 

 

 

Termination

Override

 

 

 

 

 

 

Setpoint

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Capacity

View/

 

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

Modify

Default Value

 

Configurable Range

Value

Value

 

 

 

on LID

 

 

 

 

 

 

 

 

 

 

Screen

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High

 

HCFC-22

 

HFC-134a

HCFC-22

HFC-134a

>Override

<Override Set

Equip-

 

 

 

 

 

Set Point

Point

>195 psig

 

125 psig

150 to 245 psig

90 to 200 psig

Condenser

ment

 

+ 4 psid

 

Pressure

Service1

(1345 kPa)

 

(862 kPa)

(1034-1689 kPa)

(620 to

(28 kPad)

 

 

 

 

 

 

 

1379 kPa)

 

 

High Motor

Equip-

>200 F

 

150 to 200 F

 

>Override

<Override Set

ment

(93.3 C)

 

(66 to 93 C)

 

Set Point

Point

Temperature

Service1

 

 

 

 

 

+10° F

 

 

 

 

 

 

 

 

(6° C)

 

 

 

 

 

 

 

 

 

 

Low

Equip-

<3° F (1.6° C)

 

2° to 5° F

 

<Trippoint

>Trippoint +

Refrigerant

ment

(Above Trippoint)

(1° to 3° C)

 

+ Override

Override ΔT

Temperature

Service1

 

 

 

 

 

ΔT –1° F

+2° F (1.2° C)

 

 

 

 

 

 

(0.56° C)

 

(Refrigerant

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Override

 

 

 

 

 

 

 

 

Delta

 

 

 

 

 

 

 

 

Temperature)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Equip-

HCFC-22

 

HFC-134a

HCFC-22

HFC-134a

None

Within Lift

 

ment

 

 

 

 

 

 

Limits Plus

 

Min:

 

Min:

0.5° to 15° F

0.5° to 15° F

 

 

Service1

 

 

Surge/ HGBP

 

 

T1 — 1.5° F

 

T1 — 1.5° F

(0.3° to 8.3° C)

(0.3° to 8.3° C)

 

Deadband

High

 

(0.8° C)

 

(0.8° C)

50 to 170 psid

30 to 170 psid

 

 

 

 

Setting

Compressor

 

P1 — 75 psid

 

P1 — 50 psid

(345 to

(207 to

 

 

 

 

 

Lift (Surge

 

(517 kPad)

 

(345 kPad)

1172 kPad)

1172 kPad)

 

 

Prevention)

 

Max:

 

Max:

0.5° to 15° F

0.5° to 15° F

 

 

 

 

T2 — 10° F

 

T2 — 10° F

(0.3° to 8.3° C)

(0.3° to 8.3° C)

 

 

 

 

(5.6° C)

 

(5.6° C)

50 to 170 psid

30 to 170 psid

 

 

 

 

P2 — 170 psid

 

P2 — 85 psid

(345 to

(207 to

 

 

 

 

(1172 kPad)

 

(586 kPad)

1172 kPad)

1172 kPad)

 

 

 

 

 

 

 

 

 

 

 

Manual

Control

Automatic

 

0 to 100%

 

None

Release of

Algo-

 

 

 

 

 

 

Manual

Guide Vane

 

 

 

 

 

 

rithm

 

 

 

 

 

 

Control

Target

 

 

 

 

 

 

Maint01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Image 270
Carrier PC211 specifications Capacity Overrides