This PDF download contains information for the following:
BWTT20 SWLT21 HWLX21 SWLY20 HWTR21 SWLY21 HWTT20 SWNBC2 HWTT21 SWTT20 HWTX21 SWTT21 HWTY20 SWTX21 HWTY21 SWTY20 HWTZ20 SWTY21 HWTZ21 SWTZ20 SWLT20 SWTZ21
The PDF may also contain information that applies to additional models not listed.