York E3FB090 - Manuals - manualsarea.com

Page 2 - TABLE OF CONTENTS; INSTALLATION

2 Unitary Products Group 035-15410-002-B-0404 E 3 F B 2 5 9 A PRODUCT NOMENCLATURE PRODUCT GENERATION 1 = First Generation 2 = Second Generation 3 = Third Generation PRODUCT CATEGORY E = Split-System Heat Pump Outdoor Unit PRODUCT IDENTIFIER FB = Outdoor Unit VOLTAGE CODE 25 = 208/230-3-60 46 = 460-...

Page 3 - GROUND LEVEL LOCATIONS; RIGGING AND HANDLING; TABLE 1

LIMITATIONS These units must be installed in accordance with all national and local safety codes. If no local codes apply, installation must conform with the appropriate national codes. See Table 1 for unit application data. Units are designed to meet National Safety Code Standards. If components ar...

Page 4 - CLEARANCES; WARNING: Do not permit overhanging structures or shrubs to; COMPRESSORS; CAUTION: Do Not loosen compressor mounting bolts.; COMPRESSOR CRANKCASE HEATER; CAUTION: Do not attempt to start the compressor without at; POWER AND CONTROL WIRING; POWER WIRING; TABLE 2

Units may also be moved or lifted with a fork-lift. Slotted open- ings in the base rails are provided for this purpose. The 7-1/2 ton unit may be lifted from either the LH or RH side - under the unit.LENGTH OF FORKS MUST BE A MINIMUM OF 42" (for 7-1/2 ton units) and a MINIMUM OF 54" (for 10 ...

Page 5 - WIRE SIZING; REFRIGERANT PIPING; GENERAL GUIDELINES; - TYPICAL FIELD WIRING; TABLE 3; Total Circuit Length

Some installations may require a locking cover to protect the thermostat from tampering and/or damage. Both the manual and auto changeover thermostats have non- adjustable, voltage-type anticipators for both cooling and heat- ing. WIRE SIZING Refer to the following chart to size the control wiring p...

Page 6 - - UNIT DIMENSIONS AND CLEARANCES

6 Unitary Products Group 035-15410-002-B-0404 FIG. 4 - UNIT DIMENSIONS AND CLEARANCES - 7-1/2 & 10 TON All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request. CLEARANCES Overhead (Top) 1 120" Front (Piping and Access Panels...

Page 7 - LINE SIZING; Oil return will be critical during:; TABLE 4; - FIELD PIPING DIAGRAMS

Use hard drawn copper tubing where no appreciable amount of bending around pipes or other obstructions is necessary. Use long radius ells wherever possible with one exception - small radius ells for the traps in all vapor risers. If soft copper is used, care should be taken to avoid sharp bends whic...

Page 8 - SERVICE VALVES; EXTENDING THE SERVICE PORTS; TABLE 5

(29 feet x 8.0 psi/100 feet) .............................................2.3 psi 7 feet of 1-3/8" OD, type “L” copper tubing (horizontal) (7 feet x 2.8 psi/100 feet) ...............................................0.2 psi Fitting* ....................................................................

Page 9 - EVACUATING AND CHARGING

NOTE: Use only copper tubing that has been especially cleaned and dehydrated for refrigerant use. If the tub- ing has been open for an extended period of time, it should be cleaned before being used. The liquid line connections can now be brazed while maintain- ing a minimum flow of dry nitrogen thr...

Page 10 - BALANCE POINT SETTING; The balance point of a heat pump is the lowest temperature at; The outdoor design temperature,; b i e n t b a l a n c e p o i n t c o n t r o l a c c e s s o r y M o d e l N o .; - EXTENDING THE SERVICE PORTS

BALANCE POINT SETTING The balance point of a heat pump is the lowest temperature at which the refrigeration system can heat the building without any supplemental resistance heat.The balance point is dependent upon -1. The outdoor design temperature, 2. The building heat loss at the outdoor design te...

Page 11 - - REFRIGERANT FLOW DIAGRAM

Unitary Products Group 11 035-15410-002-B-0404 FIG. 7 - REFRIGERANT FLOW DIAGRAM

Page 13 - COOLING OPERATION; OPERATION

GENERAL During the cooling cycle, when the reversing valve solenoid be- comes energized, operation will be the same as any conven- tional air conditioning system.During the heating cycle, when the reversing valve solenoid becomes de-energized, compressor discharge gas will be di- verted to the indoo...

Page 14 - DEFROST CYCLE; When condensate freezes on the outdoor coil during heating; OPERATION BELOW 0; When the system switch on the room thermostat is placed in

IN ALL THREE RESET METHODS DESCRIBED ABOVE, A FIVE MINUTE TIME DELAY WILL TAKE PLACE AFTER THE RESET BEFORE THE UNIT WILL RESTART. 8. Supplemental electric heat (if installed) will be controlled by second stage TH2 of the thermostat. The supplementalelectric heat circuit is controlled through low vo...

Page 15 - CRANKCASE HEATER; CAUTION: DO NOT ATTEMPT TO START THE COMPRES-; SAFETY FEATURES; CLEANING; NOTICE TO OWNER; MAINTENANCE

CRANKCASE HEATER The crankcase heaters must be energized at least 8 hours bef- ore starting the compressor. To energize the crankcase heat- ers, the main disconnect switch must be closed. During this 8 hour period, the system switch on the room thermostat must be OFF to prevent the compressor from...