Lennox LCH092H, Installation Instructions Manual, Page: 22 / 48

Page 22
TABLE 5
MANUFACTURER'S NUMBERS - NO TENSIONER
DRIVE NO.
DRIVE COMPONENTS
ADJUSTABLE SHEAVE FIXED SHEAVE BELT
BROWNING NO. OEM PART NO. BROWNING NO. OEM PART NO. BROWNING NO. OEM PART NO.
1 1VP34x7/8 31K6901 AK61x1 100244-20 AX54 100245-25
2 1VP40x7/8 79J0301 AK59x1 31K6801 AX55 100245-26
3 1VP34x7/8 31K6901 AK46x1 100244-17 AX52 100245-33
4 1VP44x7/8 53J9601 AK74x1 100244-21 AX58 100245-34
5 1VP50x7/8 P-8-2187 AK69x1 37L4701 AX58 100245-34
6 1VP50x7/8 P-8-2187 AK64x1 12L2501 AX57 100245-28
7 1VP44x1-1/8 36C0701 AK74x1 100244-21 AX58 100245-34
8 1VP50x1-1/8 P-8-1977 AK69x1 37L4701 AX58 100245-34
9 1VP50x1-1/8 P-8-1977 AK64x1 12L2501 AX57 100245-28
10
1VP50x1-1/8 P-8-1977 BK77x1 49K4001 BX59 59A5001
11
1VP50x1-1/8 P-8-1977 BK67x1 100244-24 BX57 78L5301
12
1VP50x1-1/8 P-8-1977 BK62x1 100244-23 BX56 100245-11
TABLE 6
MANUFACTURER'S NUMBERS - WITH TENSIONER
DRIVE NO.
DRIVE COMPONENTS
ADJUSTABLE SHEAVE FIXED SHEAVE BELT
BROWNING NO. OEM PART NO. BROWNING NO OEM PART NO. BROWNING NO. OEM PART NO.
1T 1VP44X7/8 P­8­1488 BK95X1 79J2701 BX68 88K3401
2T 1VP50X7/8 P­8­2187 BK90X1 P­8­9659 BX68 88K3401
3T 1VP56X7/8 P­8­1494 BK85X1 49K4101 BX69 100245­51
4T 1VP44X7/8 P­8­1488 BK77X1 49K4001 BK66 88K3301
5T 1VP56X7/8 P­8­1494 BK85X1 49K4101 BX69 100245­51
6T 1VP50X7/8 P­8­2187 BK67X1 100244­24 BX65 100245­08
7T 1VP44X1­1/8 100239­07 BK77X1 49K4001 BX68 88K3401
8T 1VP56X1­1/8 P­8­1492 BK85X1 49K4101 BX70 31K9601
9T 1VP50X1­1/8 P­8­1977 BK67X1 100244­24 BX66 88K3301
10T 1VP50X1­1/8 P­8­1977 BK77X1 49K4001 BX68 88K3401
11T 1VP50X1­1/8 P­8­1977 BK67X1 100244­24 BX66 88K3301
12T 1VP50X1­1/8 P­8­1977 BK62X1 100244­23 BX66 88K3301
Cooling Start-Up
IMPORTANT-The crankcase heater must be energized
for 24 hours before attempting to start compressor. Set
thermostat so there is no demand to prevent
compressors from cycling. Apply power to unit.
A-Start-Up
Supply Air Inverter Units - Refer to the Belt Drive Supply
Air Inverter Start-Up or Direct Drive Variable Blower
section.
1- Initiate first and second stage cooling demands
according to instructions provided with thermostat.
2- First-stage thermostat demand will energize
compressor 1. Second-stage thermostat demand will
energize compressor 2. On units with an economizer,
when outdoor air is acceptable, a first-stage demand
will energize the economizer; a second-stage
demand will energize compressor 1.
3- Ultra high efficiency units have a tandem refrigerant
ciruit. High efficiency units have two typical circuits.
See figure 25, 26, 27, or 28.
4- Each refrigerant circuit is charged with R410A
refrigerant. See unit rating plate for correct
amount of charge.
5- Refer to Cooling Operation and Adjustment section for
proper method to check refrigerant charge.