York ZR240 Specifications download pdf (Page 53)

275864-YIM-C-0910

Johnson Controls Unitary Products 53

Charging The Unit

Figure 31: ZR180 (15 Ton) Charging Chart

Figure 32: ZR240 (20 Ton) Charging Chart

15 Ton Charging Chart

250

300

350

400

450

500

550

125 130 135 140 145 150 155 160

Suction Pressure (psi)

Discharge Pressure (psi)

115º

105º

95º

85º

75º

Outdoor Tem

ºF

)

1. Make sure that four condenser fans are running when charging. Two fans may switch off at a

lower temperatures (about 65 degrees).

2. This chart is applicable to unit with the TXV's left to the factory setting. If the TXV’s have been

adjusted in the field, the charging chart may no longer apply.

20 Ton Charging Chart

250

300

350

400

450

500

550

100 105 110 115 120 125 130 135 140 145 150 155 160

Suction Pressure (psi)

Discharge Pressure (psi)

115º

105º

95º

85º

75º

Outdoor Tem

ºF

)

1. Make sure that four condenser fans are running when charging. Two fans may switch off at a

lower temperatures (about 65 degrees).

2. This chart is applicable to unit with the TXV's left to the factory setting. If the TXV’s have been

adjusted in the field, the charging chart may no longer apply.

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York ZR240 Specifications Page 53

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