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INSTALLATION, OPERATION, & MAINTENANCE
YMB Series
(2-pipe, cooling and heating)
(Replaces the MH Series)
YMB-HW Series
(4-pipe, cooling and heating)
(Replaces the MH-HW Series)
YMBE Series
(2-pipe, cooling with electric heat)
(Replaces the MHE Series)
Notes:
1. For proper operation, control valve must be normally closed.
2. Aquastats provided where required.
3. Electric Heat is only available in the YMBE series. These units require a remote thermostat (low voltage 4 wire thermostat).
***** WARNING TO INSTALLER, SERVICE PERSONNEL AND OWNER *****
Altering the product or replacing parts with non-authorized factory parts voids all warranty or
implied warranty and may result in adverse operational performance and/or a possible hazardous
safety condition to service personnel and occupants. Company employees and/or contractors are
not authorized to waive this warning.
L23954Y 1-05
NEW RELEASE
MODELS: YMB, YMB-HW, YMBE
FAN COIL
AIR CONDITIONERS
Form 115.20-NOM4 (105)
00781VIP
(See page 3 for details)
LD07966
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Table of Contents
Related Manuals for York YMB
Summary of Contents for York YMB
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Page 1: Ymbe Series
Company employees and/or contractors are not authorized to waive this warning. L23954Y 1-05 AIR CONDITIONERS NEW RELEASE MODELS: YMB, YMB-HW, YMBE (See page 3 for details) FAN COIL Form 115.20-NOM4 (105) 00781VIP LD07966... -
Page 2: Table Of Contents
DRAIN PIPING ...6 START UP...7 MAINTENANCE ...8 Reference Documents: • Engineering Guide, Direct Drive YMB Models • Parts List, Fan Coil Air Conditioners These documents can be ordered through Publications Dept. or downloaded @ http://intranet.york.com/web0003/library/default.asp TABLE 1 – SHIPPING WEIGHTS (LBS) -
Page 3: Installation
DESCRIPTION The YMB Series 2-pipe fan coil comes with a 4-row cooling / heating coil and a 120V multi-speed mo- tor. The YMBE Series 240V, 2-pipe fan coil comes with a... -
Page 4: Wiring
�� � �� ������� � ��� �� � �� �� �� ����� ������ ������� ������ ���� ��� ���������� �� � ����� ������ � ���������� ��� ���� ����� ������� ����� ���������� ������� � ���� ����� ����� ������ OPTION YORK INTERNATIONAL ����� ����� ������... - Page 5 ��� ����� ���� ������� ���������� ����������� ����� ��� ���� ����������� ������� ���� ���� �� � � ������� ������ ���� �� ���������� FIG. 5 – YMB, YMB-HW, YMBE DIMENSIONS TABLE 2 – PHYSICAL DIMENSIONS (INCHES) MODEL 8YMB 8YMB-HW 8YMBE 12YMB 10/12YMB-HW...
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Page 6: Piping
1-1/2 inches must be provided in the drain line to assure proper drainage. Drain connections, primary and secondary, are 3/4" MPT. COOLING COIL CONNECTIONS (INCHES) YMB, YMBE, YMB-HW HEATING COIL CONNECTIONS (INCHES) YMB-HW SIZE 20 FORM 115.20-NOM4 (105) -
Page 7: Start Up
NOTE: If the motor and fan have not been operated in the last (4) four weeks or more, lubricate all the bearings and rotate the motor and fan monthly to prevent moisture from accumulating in the bearings. (See Form 50.20-NM3, Long Term Storage) YORK INTERNATIONAL FORM 115.20-NOM4 (105) -
Page 8: Maintenance
To ensure proper maintenance of the filters, it is best to follow an organized maintenance procedure. The following one is recommended: P.O. Box 1592, York, Pennsylvania USA 17405-1592 Copyright © by York International Corporation 2004 Form 115.20-NOM4 (105) New Release...