Operator interface – American Standard CH530 User Manual

Page 41

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41

CDHF-SVU01C-EN

Operator
Interface

Report name: System Evaporator
Description

Resolution

Units

Dependencies

1. Evap Entering Water Temp

+ or – XXX.X

Temperature

2. Evap Leaving Water Temp

+ or – XXX.X

Temperature

3. Evap Water Flow Switch Status

(Flow, No Flow)

4. Evap Differential Wtr Press

XXX.X

Diff Pressure

If option installed

5. Approx Evap Water Flow

XXXX

Flow

If option installed

6. Approx Chiller Capacity

XXXX

Tons

If option installed

Report name: Circuit Evaporator
Description

Resolution

Units

Dependencies

1. Evap Sat Rfgt Temp

+ or – XXX.X

Temperature

2. Evap Rfgt Pressure

XXX.X

Pressure

3. Evap Approach Temp

+ or – XXX.X

Temperature

Report name: System Condenser
Description

Resolution

Units

Dependencies

1. Cond Entering Water Temp

+ or – XXX.X

Temperature

2. Cond Leaving Water Temp

+ or – XXX.X

Temperature

3. Cond Water Flow Switch Status

(Flow, No Flow)

4. Cond Differential Wtr Press

XXX.X

Diff Pressure

If option installed

5. Approx Cond Water Flow

XXXX

Flow

If option installed

6. Outdoor Air Temperature

+ or – XXX.X

Temperature

If option installed

Report name: Circuit Condenser
Description

Resolution

Units

Dependencies

1. Cond Sat Rfgt Temp

+ or – XXX.X

Temperature

2. Cond Rfgt Pressure

XXX.X

Pressure

3. Cond Approach Temp

+ or – XXX.X

Temperature

Note: Approach temperatures shown are the mathematical difference between the chiller leaving water temperature and
the corresponding saturated refrigerant temperature of same circuit. When one compressor is operational the approach
value will be similar to those values found on single compressor models. However when both compressors are
operating, the upstream compressor circuits approach will be the mathematical difference of the upstream chillers
refrigerant temperature and the leaving water temperature after the down stream chillers circuit. Therefore the approach
of the upstream circuit will be a negative number in many instances, when both compressors are operating.

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