28
Raypak, Inc.
MultIple ModulatInG boIlers
dIrect HeatInG pIpInG dIaGraM
----
----
SYSTEM
A
B
C
D
1 2
RUN
PROGRAM
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
3 4 5 6 7 8 9 10 11 12
13
15
14
17
16
18
20
19
21
24
23
29
25
27
26
28
32
30 31
L N
-
+
+
T
T
O
O
RS-485
mA
GND
VLT
SYS
A
B
C
D
PWR
CUR / VLT
A
-
+
+
mA
GND
VLT
-
+
+
mA
GND
VLT
+
+
mA
22
-
GND
VLT
+
mA
TEMP
OUTDOOR
O
O
TEMP
SYSTEM
EXTENSION
MODULE
CUR / VLT
B
CUR / VLT
C
CUR / VLT
D
PROVE
/DHW
SHUTDOWN
/SETBACK
FOR ALL CIRCUITS
120VAC, 6A RESISTIVE
OUTPUT RATINGS:
1A PILOT DUTY, 15A TOTAL
115VAC 60Hz , 30VA MAX
INPUT RATINGS:
USE COPPER WIRE,
CLASS 1 WIRE ONLY.
CAUTION
: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
Outdoor
Sensor
System
Sensor
120VAC
Boiler 1
Boiler 2
Boiler 3
Boiler 4
Building Heating Loop
system:
The TempTracker provides 4 Raypak modulating boilers using a 4 - 20mA modulating signal. The boilers are piped in
Reverse Return on the primary loop. The System output is controlling the System Pump.
Raypak is aware that each installation is unique. Thus, Raypak is not responsible for any installation related to any
electrical or plumbing diagram generated by Raypak. The provided illustrations are to demonstrate Raypak’s control
operating concept only.
