Installation Instructions

Document No. 540-568
Installation Instructions
April 10, 2008
11
1615141312
10
98
1 2 3 4 5 6 7
COOLING STAGE 2
COOLING STAGE 1
TEC2053-2153WDR1
DI 2
DO 6
DO 5
DO 4
DO 3
DO 2
DO 1
AI3 / DI3
NO
C
NO
C
NO
C
NO
C
NO
C
NO
C
+
-
FAN
SPARE DO
WALL SWITCH (OPTIONAL)
OR SPARE DI (DRY CONTACT)
SPARE AI (100K THERMISTOR)
OR SPARE DI (DRY CONTACT)
Y2
Y1
G
HTG VALVE
ACTUATOR
CLOSED
OPEN
C
Figure 11. Point Wiring for Application 2053 and 2153
(Fan Coil Unit 2–Stage Cooling and Hot Water Heat).
11
1615141312
10
98
1 2 3 4 5 6 7
E. HEAT
STAGE 1
E. HEAT
STAGE 2
Y2
Y1
COM (C)
CW (OPEN)
CCW (CLOSED)
G
DAMPER, OR
(CLG VALVE)
TEC2054-2154WDR1
DI 2
DO 6
DO 5
DO 4
DO 3
DO 2
DO 1
AI3 / DI3
NO
C
NO
C
NO
C
NO
C
NO
C
NO
C
+
-
FAN
E. HEAT
STAGE 3
WALL SWITCH (OPTIONAL)
OR SPARE DI (DRY CONTACT)
SPARE AI (100K THERMISTOR)
OR SPARE DI (DRY CONTACT)
MECHANICAL STOPS
TO PROVIDE
MINIMUM AND
MAXIMUM AIRFLOW
SETTINGS PRO-
VIDED BY OTHERS
Figure 12. Point Wiring for Application 2054 and
2154 (Fan Coil Unit Cooling and Electric Heat or VAV
Pressure Dependent with Electric Heat).
Siemens Building Technologies, Inc. Page 7 of 8