York H1DS048 Installation Instruction page 8

550.37-N1Y
TABLE 2 - RECOMMENDED SPEED TAP SELECTION
INDOOR
VARIABLE INDOOR
SPEED EVAP.
AIR COIL
HANDLER
G/HC036
N1VSD14
G/HC042
G/HC048
N2VSD20
G/HC060
NOTE: For ARI testing requirements, adjust the delay profile in "Test Mode". Refer to Installation Instructions for N1VS variable speed
air handlers for additional details if necessary.
NA = Not Applicable.
SCREW
TERMINAL
BOARD
DE-HUMIDIFI
CATION
CONTROL
ACCESSORY
JUMPER
FIGURE 10 - N1VS/N2VS Connector Board
SPEED TAP SELECTION FOR VARIABLE SPEED
AIR HANDLERS
The variable speed air handler motor's speed tappings must
be adjusted from the factory settings for the required outdoor
condensing unit as shown in Table 2. A typical variable speed
air handler (N1VS/N2VS) connector board configuration show-
ing the various speed taps is shown in Figure 10. Refer to
variable speed air handler installation instructions for additional
details, regarding the CFM for the corresponding speed taps.
8
H*DS036
COOL ADJ DELAY
TAP TAP PROFILE
Jumper NO Jumper
at "B" Jumper at "C"
Jumper NO Jumper
at "A" Jumper at "C"
Jumper Jumper Jumper
at "A" at "C" at "C"
HEAT PUMP JUMPER
CONDENSING UNITS
H*DS048
COOL ADJ DELAY
TAP TAP PROFILE
NA NA NA
Jumper NO Jumper
at "B" Jumper at "C"
Jumper NO Jumper
at "C" Jumper at "C"
BLOWER MOTOR
INTERFACE HARNESS
CONNECTS HERE
JUMPER IN STORED POSITION
ELECTRIC HEAT OR TRANSFORMER WIRING
HARNESS CONNECTS HERE
By selecting the speed taps shown in Table 2, the air handler
will deliver the rated CFM when both (lead and follower)
compressors are running, and the air handler motor will oper-
ate at a lower speed automatically when only the lead com-
pressor is running. The variable speed motor used in this air
handler is programmed to automatically adjust to the lower
speed when there is a call for first stage (Y1) cooling from the
two stage cooling thermostat.
H*DS060
COOL ADJ DELAY
TAP TAP PROFILE
NA NA
NA NA
Jumper Jumper Jumper
at "B" at "C" at "C"
(Vertically on RH side, pins "A" and "B")
COOL TAP
JUMPER IN "A" CFM
(Horizontally jumper two "A" pins)
ELECTRIC
HEAT TAP
ADJ TAP
DELAY
PROFILE TAP
Central Environmental Systems
NA
NA