Installation and Operation Manual
●
Fan Coil Controller – EZstat
EC-EZstat
Date: 9-2014
Supersedes: NEW
Engineered Comfort reserves the right to change any information concerning product or specification without notice or obligation.
Page 17 of 36
Procedure
Steps
Display
Select a
commissioning
function
Access to the commissioning functions always starts at the MAIN menu display.
Procedure
Steps
Display
Starting Display
1.
Start at the temperature display.
2.
Enter Password 2. The display changes to the MAIN menu display.
F
°
70
AUTO
AUTO
Choose and set
the setpoints
1. From the MAIN menu, press either the
or
button to select
SETPOINTS.
2. Press the
Enter
. The SETPOINTS menu opens.
3. Choose and set each of the following setpoints.
•
OCC COOL—The cooling setpoint that is used as the active
setpoint when the system is occupied.
•
OCC HEAT—The heating setpoint that is used as the active setpoint
when the system is occupied.
•
UNOCC COOL—The cooling setpoint that is used as the active
setpoint when the system is un‑occupied.
•
UNOCC HEAT—The heating setpoint that is used as the active
setpoint when the system is unoccupied.
•
MIN COOLING—The minimum cooling setpoint that a user can
select as the active setpoint.
•
MAX HEATING—The maximum heating setpoint that a user can
select as the active setpoint.
•
DIFFERENTIAL—The minimum value between the cooling or
heating setpoints. The EZstat will always maintain this difference
between set points.
•
STBY OFFSET—A value used to calculate the standby setpoint.
The standby setpoint is calculated by adding or subtracting
the offset value to or from the value of the occupied setpoint.
(Applicable to BACnet systems only).
•
COOL DAT LIMIT* – A value used to control the discharge cooling
temperature.
•
HEAT DAT LIMIT* – A value used to control the discharge heating
temperature.
* Nailor Exclusive: The DAT is monitored by the control and will modulate
the valve according to the demand versus DAT setpoint
Back
Enter
Cncl
SETPOINT
OCC COOL
OCC HEAT
UNOCC COOL
UNOCC HEAT
MIN COOLING
MAX HEATING
DIFFERENTIAL
Back
Enter
Cncl
SETPOINT
OCC COOL
OCC HEAT
UNOCC COOL
UNOCC HEAT
MIN COOLING
MAX HEATING
DIFFERENTIAL
6.2 Setting the commissioning setpoints
The commissioning setpoints set the operational setpoints and limits for the EZstat. Setting commissioning setpoints
requires entering Password 2 which is described in the topic
Enter the Commissioning mode
.
Not all setpoints in the following procedure are applicable to all models of EZstat.
NOTE
NOTE