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ACC-APG002A-EN

Table 9. Service test mode states — cooling only (continued)

(a)

For VVDA units, Supply Fan Speed Request shall not be 100 before VAV boxes full open. If VAV box stroke timer has not expired, set fan speed to Min to avoid high duct static pressure trip.

(b)

Reheat Pumpout Solenoid On/Off Request shall be ON whenever compressor cool or heat stage request is greater than 0, except during the "Reheat" step.

(c)

For VVDA units, Heat Cool Mode Status shall be set to Maximum Heat to coordinate VAV Box Relay, when any service test step activated

(d)

Supply Fan Speed Request "Effective Mid" equals to ( Effective Maximum Fan Speed + Effective Minimum Fan Speed ) / 2.

(e)

For "Heat 1" , the supply fan speed shall run at min speed due to Staged Gas Heat supply fan requirements.

(f)

Reheat Valve 1 Request is set to 85% in "Open Reheat Valve 1" step, because 85% is the max operating range during normal operation. Refer to the step motor reference docs for more detail information.

Service Test Mode