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York D2NA060 - page 1
GENERAL YORK Model D1NA and D2NA units are cooling/heating air con - ditioners designed for outdoor installation. Only gas piping, elec - tric power and duct connections are required at the point of installation. The gas-fired heaters have hot surface to pilot ignition. The tu - bular heat exchangers are aluminized steel. This appliance is not to b ...
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York D2NA060 - page 2
035-18265-001-A-0202 2 Unitary Products Group T ABLE OF CONTENTS TROUBLESHOOTING T roubleshooting Chart ..................................................... 15 T ABLES No. Description Page 1 Units Application Data ................................. 3 2 Natural Gas Application Data ...................... 5 3 LP Gas Application Data ................. ...
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York D2NA060 - page 3
Not suitable for use with conventional venting systems. LIMIT ATIONS These units must be installed in accordance with the following national and local safety codes. 1. National Electrical Code ANSI/NFPS No. 70 or Canadian Electrical Code Part 1, C22.1 (latest editions). 2. National Fuel Gas Code Z223.1 or CAN/CGA B149.1 or .2 Installation Code. 3. ...
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York D2NA060 - page 4
Refer to Figure 5 for information concerning rear and bottom supply and return air duct openings. ROOF CURB On applications when a roof curb is used, the unit must be posi - tioned on the curb so the front of the unit is tight against the curb. FILTERS Single phase units are shipped without a filter and is the responsi - bility of the installer to ...
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York D2NA060 - page 5
Scroll compressors operate in one direction only . If a three phase scroll compressor is experiencing: • Low amperage draw • Similar discharge and suction pressures • Increased noise level then the compressor is operating in reverse. T o correct this condition, switch any two (2) line voltage leads at the contactor . Please note, single phase ...
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York D2NA060 - page 6
3. Use wrought iron or steel pipe for all gas lines. Pipe dope should be applied sparingly to male threads only . CAUTION: If flexible stainless steel tubing is allowed by the authority having jurisdiction, wrought iron or steel pipe must be installed at the gas valve and extend a minimum of two (2) inches outside of the unit casing. WARNING: Natur ...
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York D2NA060 - page 7
035-18265-001-A-0202 Unitary Products Group 7 FIG . 4 - CENTER OF GRA VITY 25 24 CENTER OF GRA VITY FRONT OF UNIT CORNER “C” CORNER “D” CORNER “A” CORNER “B” T ABLE 7 - UNIT WEIGHTS MODEL DNA UNIT SHIPPING WEIGHT (lbs.) UNIT OPERA TING WEIGHT (lbs.) CORNER OPERA TING WEIGHTS (lbs., location, see Figure 4) “A” “B” “C” “ ...
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York D2NA060 - page 8
035-18265-001-A-0202 8 Unitary Products Group FIG . 5 - DIMENSIONS AND CLEARANCES CLEARANCES (Minimum) Front 36" Back 0" Left Side (Filter Access) 24" Right Side 12" Below Unit 1 0" Above Unit 2 36" (For Condenser Air Discharge) 15 4 REAR SIDE RETURN AIR OPENING SIDE SUPPL Y AIR OPENING BOTTOM RETURN AIR OPENING 15 15 ...
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York D2NA060 - page 9
HEA TING When the thermostat calls for “HEA T”, the thermostat terminal “W” is energized, energizing the combustion air blower . After airflow is established, the air proving switch closes, the hot surface ignitor is energized and the pilot valve opens ignit - ing the pilot flame. The system will try to light the pilot for 90 seconds. After ...
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York D2NA060 - page 10
2. Check for correct manifold gas pressures. See “Checking Gas Input”. 3. Check the supply gas pressure. It must be within the limits shown on rating nameplate. Supply pressure should be checked with all gas appliances in the building at full fire. At no time should the standby gas line pressure exceed 10.5", nor the operating pressure dro ...
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York D2NA060 - page 11
3. After maintenance of the pilot assembly , always measure the resistance across the ignitor . If the resistance is greater than 10 ohms, discard the ignitor and replace it with a new ignitor . ADJUSTMENT OF TEMPERATURE RISE The temperature rise (or temperature difference between the return air and the heated air from the furnace) must lie within ...
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York D2NA060 - page 12
NORMAL MAINTENANCE WARNING: Prior to any of the following maintenance proce - dures, shut off all power to the unit, to avoid per - sonal injury . Periodic maintenance consists of changing or cleaning filters. Under some conditions, the main burners should be cleaned. FILTERS - Inspect once a month. Replace Disposable or clean Permanent T ype as ne ...
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York D2NA060 - page 13
Checking Supply Air CFM T o check the supply air CFM after the initial balancing has been completed: 1.Remove the two ¼ inch dot plugs in the duct panel. 2.Insert at least 8 inches of ¼ inch tubing into each of these holes for sufficient penetration into the airflow on both sides of the indoor coil. 3.Using an inclined manometer , determine the p ...
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York D2NA060 - page 14
14 Unitary Products Group 035-18265-001-A-0202 T ABLE 1 1 - SUPERHEA T CHARGING T ABLE FOR MODEL D1NA024 OUTDOOR TEMPERATURE (F) SUPERHEA T A T COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON INDOOR WB TEMPERATURE (F) 55 57 59 61 63 65 67 69 71 73 75 65 13.9 16.5 19.0 21.5 24.1 26.6 29.2 29.7 30.3 30.9 31.5 70 9.5 12.5 15.5 18.5 21.5 24.5 27.5 28.2 2 ...
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York D2NA060 - page 15
Unitary Products Group 15 035-18265-001-A-0202 T ABLE 14 - SUPERHEA T CHARGING T ABLE FOR MODEL D1NA042 OUTDOOR TEMPERATURE (F) SUPERHEA T A T COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON INDOOR WB TEMPERATURE (F) 55 57 59 61 63 65 67 69 71 73 75 65 18.0 19.7 21.4 23.0 24.7 26.3 28.0 29.1 30.2 31.3 32.4 70 13.4 15.3 17.3 19.3 21.2 23.2 25.2 26.6 2 ...
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York D2NA060 - page 16
16 Unitary Products Group 035-18265-001-A-0202 TROUBLESHOOTING YES . T urn gas supply off . Set thermostat to SV9501 is powered (24 V AC nominal) Igniter warms up and glows red Pilot valves opens T urn gas on. Pilot burner lights? Check . Line voltage power . Low voltage transformer . Main limit (Auto reset) . Rollout limit (Manual reset) . Auxilar ...
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York D2NA060 - page 17
Unitary Products Group 17 035-18265-001-A-0202 FIG . 9 - TYPICAL WIRING DIAGRAM (208/230-1-60 POWER SUPPL Y) FIG . 10 - TYPICAL WIRING DIAGRAM (208/230-3-60 POWER SUPPL Y) SEE DET AIL "A" (See page 18) ...
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York D2NA060 - page 18
18 Unitary Products Group 035-18265-001-A-0202 FIG . 1 1 - TYPICAL WIRING DIAGRAM (460-3-60 POWER SUPPL Y) FIG . 12 - TYPICAL WIRING DIAGRAM (575-3-60 POWER SUPPL Y) (See page 18) B (See page 18) B ...
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York D2NA060 - page 19
Unitary Products Group 19 035-18265-001-A-0202 (AL TERNA TE) (AL TERNA TE) TYPICAL WIRING DIAGRAM NOTES (See pages 16 and 17) TYPICAL WIRING DIAGRAM LEGEND (See pages 16 and 17) FIG . 13 - WIRING DIAGRAM DET AIL “B” (460 & 575-3-60 POWER SUPPL Y) See page 17 ...
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York D2NA060 - page 20
20 Unitary Products Group 035-18265-001-A-0202 NOTES ...
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York D2NA060 - page 21
Unitary Products Group 5005 Y ork Drive, Noman, Oklahoma 73069 Subject to change without notice. Printed in U.S.A. Copyright by Y ork International Corporation 2000 All Rights Reserved. Supersedes: 035-18265-000-A-0801 035-18265-001-A-0202 ...
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