Orion-system Water Source Heat Pump Module Tulsa Manual de usuario descargar pdf (Pagina 11)

Technical Guide

Water Source Heat Pump Module

Sequence of Operation

Table 2: Water Source Heat Pump Module Inputs &

Outputs

General

The following inputs and outputs are available on the Water Source Heat

Pump Module. See Table 2 below to reference the Input/Output Map.

Water Source Heat Pump Module

Setpoints

The Water Source Heat Pump Module setpoints are preset at AAON and

are based on the unit’s design as well as the type of coolant being used

in the water loop. See Tables 3 & 4 for default settings.

NOTE: These are default settings only. The setpoints may be

different based on the unit’s design and coolant being

used. The 6-digit R numbers in the tables are the AAON

part numbers located on the module’s label.

Binary Inputs

1 Compressor A1 Enable (BIN 1)

2 Compressor A2 Enable (BIN 2)

3 Compressor B1 Enable (BIN 3)

4 Compressor B2 Enable (BIN 4)

5 Heat Enable (BIN 5)

6 Water Proof of Flow System A (BIN 6)

7 Water Proof of Flow System B (BIN 7)

Analog Inputs

1 Suction Pressure A1 (Pres 1)

2 Suction Pressure A2 (Pres 2)

3 Suction Pressure B1 (Pres 3)

4 Suction Pressure B2 (Pres 4)

5 Leaving Water Temperature System A (T1)

6 Leaving Water Temperature System B (T2)

Analog Outputs (1-5 VDC)

1 Digital Stage 1 (Compressors A1 & B1) (AOUT1)

2 Digital Stage 2 (Compressors A2 & B2) (AOUT2)

NOTE: Analog Outputs are not used on Stand

Alone Application

Relay Outputs (24 VAC)

1 Compressor A1 Enable Output (RLY1)

2 Compressor A2 Enable Output (RLY2)

3 Compressor B1 Enable Output (RLY3)

4 Compressor B2 Enable Output (RLY4)

5 Alarm Output (RLY5)

Table 3: Factory-Set Default Setpoints - Water Only

Water-Only Default Setpoints

Description

R410-A

R88350

R22

R90680

UNSAFE SUCTION 40 PSIG 20 PSIG

LOW SUCTION HEAT MODE 100 PSIG 57 PSIG

LOW SUCTION COOL MODE 100 PSIG 57 PSIG

LOW LEAVING WATER TEMP 37ºF 37ºF

Table 4: Factory-Set Default Setpoints - Glycol

Glycol Default Setpoints

Description

R410-A

20%

Glycol

R99750

R410-A

25%

Glycol

R88351

R410-A

40%

Glycol

R99760

UNSAFE SUCTION 40 PSIG 40 PSIG 40 PSIG

LOW SUCTION HEAT

MODE

77 PSIG 65 PSIG 45 PSIG

LOW SUCTION COOL

MODE

85 PSIG 85 PSIG 85 PSIG

LOW LEAVING WATER

TEMP

23ºF 19ºF 0ºF

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 19 20

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