NTI INSTALLATION MANUALS

Part 9 - Controls

Description

Value

Menu

Setting

Default

Sub-Menu

Parameter

0 = Fixed Outlet Temperature 1 = Basic Temp. Control 2 = Indoor Temp. Reset 3 = Outdoor Temp. Reset 4 = Indoor and Outdoor Temp. Reset

See Table 29 and F. Type of Temperature Control for details.

Type of Temperature Control

3

5 2 1

Slope of Outdoor Reset Curve

0.2 - 3.5

1.3

5 2 2

See graph and description of Parameter 422.

-12 - +12 (when 4.2.0 = 0) -25 - +25 (when 4.2.0 = 1)

Parallel Shift of Reset Curve

0

5 2 3

See description of Parameter 423.

2 if Parameter 4.2.0 = 0 4 if Parameter 4.2.0 = 1

Room Sensor In uence

0 - 20

5 2 4

Adjusts the in uence of room temperature on target boiler temperature - a higher setting causes a greater increase to the boiler target temperature as the indoor temperature drops below room setpoint. Only applicable when using an optional NTI Room Sensor and when 5.2.1 = 2 or 4. 179 5.2.5 sets the allowable boiler operating temperature range for Zone 2 heating, limiting Automatic Temperature Control and manual adjustments from the User Menu. 95 5.2.6 sets the allowable boiler operating temperature range for Zone 2 heating, limiting Automatic Temperature Control and manual adjustments from the User Menu. MAXIMUM Temperature Setting 68 - 179 °F MINIMUM Temperature Setting 68 - 179 °F

5 2 5

5 2 6

5 3 ZONE 2 DIAGNOSTICS 5 3 0 Room Temperature

Read only Read only

Only applicable when using an NTI room sensor

Room Temperature Setpoint

5 3 1 5 3 4

Heat Call

0 = OFF, 1 = ON (Read only)

5 7 ZONE 2 REGULATION PARAMETERS

See description of Parameter 475.

Auto Boost

0 = OFF, 1 = ON

0

5 7 5

6 ZONE 3 PARAMETERS 6 0 ZONE 3 TEMPERATURE SETTINGS 6 0 0 Temperature Day

50 - 86 °F 32 - 86 °F 68 - 179 °F 68 - 179 °F

66 Only applicable when using an NTI room sensor

Temperature Night

61

6 0 1

179 Parameter 6.2.0 = 1 120 Parameter 6.2.0 = 0

Fixed Temperature

6 0 2

Only applicable when using an NTI room sensor - Changes all zones

Zone Freeze Protection Temperature

36 - 59 °F

41

6 0 3

6 1 SUMMER/WINTER CHANGEOVER 6 1 0 S/W function activation

0 = OFF, 1 = ON

1

S/W temperature threshold

50 - 86 °F

68

6 1 1

S/W delay time

0 - 300 minutes

60

6 1 2

6 2 ZONE 3 SETTINGS

This parameter determines the starting boiler target temperature when using Basic Temp. Control (6.2.1 = 1)

Temperature Range

0 - 1

1

6 2 0

0 = Fixed Outlet Temperature 1 = Basic Temp. Control 2 = Indoor Temp. Reset 3 = Outdoor Temp. Reset 4 = Indoor and Outdoor Temp. Reset

See Table 29 and F. Type of Temperature Control for details.

Type of Temperature Control

3

6 2 1

Slope of Outdoor Reset Curve

0.2 - 3.5

1.3

6 2 2

See graph and description of Parameter 422.

72