17
System Setup
• INSTALL: Use to set the current date. Use the keypad
buttons to scroll to the correct date.
• EQUIPMENT: Always set to CONV even if the unit is a
heat pump.
• AUX2 IN: Always set to W.
• FAN TYPE: Set for either single or 2 speed. The default is
2 speed. (See Note 3 below.)
• AUX1 OUT: If remote Fault Detection and Diagnostic
(FDD) monitoring is required select SYS.
• OCC: occupancy, always set to INPUT.
NOTES:
1. For 2 speed unit, under SYSTEM SETUP: EQUIPMENT= CONV, AUX2 I = W, and FAN TYPE = 2 SPEED
2. More sophisticated controller setups, including for DCV or power exhaust, are available by referring to Table 11 options
3. Note 3: Fan speed options are:
a. 1 speed
b. 2 speed
c. 2 speed: 1 heat, 1 cool (for future use)
d. 3 speed: 1 heat, 2 cool (for future use; do not use 3 speed setting for LC units)
NA = Not applicable
Table 10 — Standard W7220 Controller Configuration for 1 or 2 Speed Unit
CONTROLLER MENU
ITEM
FOR SINGLE SPEED UNIT FOR 2 SPEED UNITS
NOTE
DEFAULT SET TO: DEFAULT SET TO:
SETPOINTS
MAT SET 53°F 38° to 70°F 53°F 38° to 70°F
LOW T LOCK 32°F -45° to 80°F 32°F -45° to 80°F
DRYBLB SET 63°F 48° to 80°F 63°F 48° to 80°F Only displayed if using single DB OA sensor
ENTH CURVE ES3 ES1 to ES5 ES3 ES1 to ES5
Only displayed if using a single enthalpy OA
sensor
MIN POS 4.4 Vdc 2 to 10 Vdc Only displayed if set up for single speed unit
MIN POS H NA NA 4.4 Vdc 2 to 10 Vdc Only displayed if set up for 2 speed unit
MIN POS L NA NA 6.0 Vdc 2 to 10 Vdc Only displayed if set up for 2 speed unit
SYSTEM
SETUP
INSTALL 1/1/2010 Current date 1/1/2010 Current date
EQUIPMENT CONV CONV CONV CONV Always set to CONV, even on HP units
AUX2 I W W W W Always set to W
FAN TYPE 2 speed 1 speed 2 speed 2 speed See Note 3
AUX1 OUT NONE SYS NONE SYS Set to SYS for remote FDD monitoring
OCC INPUT INPUT INPUT INPUT Always set to INPUT