York D7CG 036 - Manuals - manualsarea.com

Page 2 - FIGURES; No. Description Page; TABLE OF CONTENTS

General ................................................................................ 1Inspection............................................................................. 1Reference ............................................................................ 1Approvals ..........................

Page 3 - INSTALLATION; UNIT SIZE; Unitary Products Group

LIMITATIONS These units must be installed in accordance with the currenteditions of the following national and local safety codes:In the U.S.A.: 1. National Electrical Code ANSI/NFPA No. 70. 2. National Fuel Gas Code Z223.1. 3. Gas-Fired Central Furnace Standard ANSI Z21.47-1993. 4. Local gas utilit...

Page 5 - GAS PIPING; CAUTION: Label all wires prior to disconnection when servic-; TYPICAL POWER WIRING; TABLE 3 - PIPE SIZING

DISCONNECT SWITCH BRACKET FOR UNITSWITH OPTIONAL BELT-DRIVE BLOWER A special bracket for mounting a field-supplied disconnectswitch is provided in each unit ordered with an optionalbelt-drive supply air blower. The bracket is shipped inside theblower compartment taped to the top of the blower housin...

Page 8 - TABLE 4 - STATIC RESISTANCES

NOTE: Install filters so that “Air Flow” arrows point toward the unit. 8. Install filter cover over the end of the hood with one screw (center of hood), securing filters into position. CAUTION: When proceeding with Steps 9 and 10, extreme care must be exercised while turning both the setpoint and mi...

Page 9 - FIG 8 - CENTER OF GRAVITY; TABLE 5 - PHYSICAL DATA; - Side Duct Connections

FIG 8 - CENTER OF GRAVITY APPROXIMATE CENTER OF GRAVITY FRONT 48-11/32 21 32-1/8 15-1/4 82 1 ⁄ 4 “ X 44 7 ⁄ 8 “ CONDENSERCOIL END BACK CORNER C CORNER D CORNER B CORNER A Y DIM. 3-5 TON 6 TON Y 19-3/4" 22" X 40-3/4" 44" MODELS UNIT SIZE 036 048 060 072 EVAP. BLOWER CENTRIFUGAL BLOWER...

Page 10 - TABLE 8

- SUPPLY AIR PERFORMANCE - 3 & 4 Ton w/Belt-Drive Blower TABLE 8 UNIT SIZE AIR FLOW CFM Available External Static Pressure - IWG* 0.20 0.30 0.40 0.50 0.60 0.70 0.80 RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts 036 2000 843 860 880 925 919 1005 956 1065 993 1145 1030 1195...

Page 11 - TABLE 9

UNIT SIZE AIR FLOW CFM Available External Static Pressure - IWG* 0.20 0.30 0.40 0.50 0.60 0.70 0.80 RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts 072 3200 1150 2325 1182 2425 1212 2525 - - - - - - - - 3000 1100 2010 1129 2090 1157 2150 1185 2225 1215 2290 1242 2360 - - 2800 1...

Page 12 - TABLE 12 - SUPERHEAT CHARGING TABLE FOR MODEL 036

OUTDOOR TEMPERATURE, ° F SUPERHEAT AT SCROLL COMPRESSOR SUCTION, ° F, AIRFLOW = 400 CFM/TON INDOOR WB TEMPERATURE, ° F 55 57 59 61 63 65 67 69 71 73 75 65 25.6 26.8 28 29.2 30.4 31.6 32.8 33.3 33.9 34.4 34.9 70 20.1 21.7 23.3 24.9 26.5 28.1 29.6 30.6 31.5 32.4 33.4 75 14.6 16.6 18.5 20.5 22.5 24.5 2...

Page 14 - REAR VIEW; CLEARANCES; AIR FLOW LEGEND; UTILITIES ENTRY DATA

DUCT COVERS - Units are shipped with all air ductopenings covered.For side duct applications;1. Remove and discard the supply and return air duct covers.2. Connect ductwork to duct flanges on the rear of the unit.For bottom duct applications;1. Remove the side supply air duct cover to gain access to...

Page 15 - A Suction Line Freezestat to protect against low evaporator; HEATING SEQUENCE OF OPERATION; The control circuit includes the following safety controls:; GAS MAIN; OPERATION

COOLING SYSTEM The cooling section is a complete factory package utilizing anair-cooled condenser. The system is factory-charged withRefrigerant-22. The scroll compressor is hermetically sealed and internallysprung. The scroll compressors have inherent (internal)protection. If there is an abnormal t...

Page 17 - TURNS

PILOT CHECKOUT The pilot flame should envelope 3/8 inches of the end of theflame sensor. Refer to Figure 12. To adjust pilot flame, (1)remove pilot adjustment cover screw, (2) adjust the screw forthe proper pilot flame, (3) be sure to replace cover screw afteradjustment to prevent possible gas leaka...

Page 18 - CHECKING GAS INPUT; SECURE OWNER’S APPROVAL; FIG. 15 PRESSURE DROP vs SUPPLY AIR CFM; Seconds; TABLE 18 - GAS RATE - CUBIC FEET PER HOUR

evaporator coil may vary greatly, measuring the pressuredrop across a wet coil under field conditions would beinaccurate. To assure a dry coil, the scroll compressorsshould be de-energized while the test is being run. 4. Knowing the pressure drop across a dry coil, the actual CFM through the unit ca...

Page 19 - NORMAL MAINTENANCE; MAINTENANCE

NORMAL MAINTENANCE CAUTION: Prior to any of the following maintenance proce- dures, shut off all power to the unit to preventpersonal injury. Periodic maintenance normally consists of changing or cleaningfilters and (under some conditions) cleaning the main burners. FILTERS - Inspect once a month. R...