Panel Checks; Programmed Values - York Millennium YDAS 410 Installation Operation & Maintenance

PANEL CHECKS

(Power On – Both System Switches "OFF")
q 1. Apply 3 phase power and verify its value (See
Fig. 20).
q 2. Apply 115VAC and verify its value on the termi-
nal block in the lower left of the Power Panel.
Make the measurement between terminals 5 and
2 of TB1 (See Fig. 20.). The voltage should be
115VAC +/- 10%.
q 3. Assure the heaters on each compressor are on.
Allow the compressor heaters to remain on a
minimum of 24 hours before startup. This is im-
portant to assure that no refrigerant is in the com-
pressor oil at start-up!
q 4. Program the dip switches on the microprocessor
board for the desired operating requirements. See
Page 89. OPEN = Left side of switch pushed down.
CLOSED = Right side of switch pushed down.
SW# OPEN
1 Water
2 Std Amb
3 Local
4 N/A
5 English
6 ACL Start
7 M Lead/Lag
8 R- 1 34a
Verify the selections by pressing the OPTIONS
Key on the control panel. Check them off.
CAUTION: Damage to the chiller could result if
switches are improperly pro-
grammed.
q 5. Program the required twenty-two operating val-
ues into the micro for cut-outs, safeties, etc. and
record them in the chart below. See Page 113.
If Default Values are desired for programming
convenience, press the PROGRAM key, 6140,
and ENTER. This loads default values. Record
these values in the chart below. See page 120.

PROGRAMMED VALUES

Refrigerant Type = __________________________
Dischg Press Cut-out = ____________ PSIG (kPa)
Low Amb Cut-out = ___________________ °F (°C)
High Amb Cut-out = ____________________ °F (°C)
Disch Press Unld = _________________ PSIG (kPa)
Avg Current Unld = _____________________ %FLA
Anti Recycle Time = _____________________ Secs
LWT Cut-out = ________________________ °F (°C)
Suction Press Cut-out = ____________ PSIG (kPa)
Lag Cmpr Start Point = _________________ %FLA
Lag Compr Diff Off = ___________________ %FLA
Fan Dsch Press Setpt = _____________ PSIG (kPa)
Fan On/Off Press Diff = _____________ PSIG (kPa)
Sys 1 Curr = 100 %FLA = _______________ AMPS
Sys 2 Curr= 100 %FLA = ________________ AMPS
Sys 3 Curr= 100% FLA = _______________ AMPS
Sys 4 Curr= 100% FLA = _______________ AMPS
Liq Inj Temp Limit = ____________________ °F (°C)
CLOSED
Sys 1 Cond Tmp = ______________ °F (°C) = 100%
Brine
Low Amb
Sys 2 Cond Tmp = ______________ °F (°C) = 100%
Remote
Sys 3 Cond Tmp = _____________ °F (°C) = 100%
N/A
SI (Metric)
Sys 4 Cond Tmp = ______________ °F (°C) = 100%
W-D Start
Com Mode = ISN _________ or RCC __________
A Lead/Lag
R-22
Load Share = SV% ________ or %FLA __________
Econ Valve On Point = ________________________
Econ Valve Off Point = ________________________
q 6. Program the Chilled Liquid Temp/Range and
q 7. Assure that the CLK jumper J18 on the Micro-
q 8. Set the Time and Date.
q 9. Program the Daily Schedule start and stop times.
record:
CR = ________ to _________ °F (°C)
Target = ____________ °F (°C)
Keep in mind that the Target temperature dis-
played by the micro should equal the desired
leaving water temperature.
processor Board is in the ON position (Top 2
pins).