Submittal
Below is a sample application drawing for this product. This application may include other tekmar products that are required
for installation. More sample applications can be found at www.tekmarControls.com.
Sample Application Drawing
Sample
Mechanical
Product design, software and literature are Copyright ©2013 by
tekmar Control Systems Ltd.,
A Watts Water Technologies Company
2 of 2
All specifications are subject to change without notice.
Printed in Canada. 284_C - 02/13.
tekmar Control Systems Ltd., A Watts Water Technologies Company.
Head Offi ce: 5100 Silver Star Road,
Vernon, B.C. Canada V1B 3K4, 250-545-7749, Fax. 250-545-0650 Web Site: www.tekmarControls.com
Sample
Electrical
Modbus
®
/ BACnet
®
IP
483
tekmarNet
®
4
S3
P2
P1
P8
P7
S2
S8S7S6
P3 P4 P5 P6
S5
S9
S4
F1
284
S1
C.A. Damper
BAS
C.A. Proof
L
N
L
N
L
N
L
N
L
N
L
N
L
N
B
G
A
Optional Modbus
®
BAS Connection
C.A. Damper
tN4
C
Optional tN4 Gateway 482/483
Boiler 1 Pump (P3)
Boiler 2 Pump (P4)
Boiler 3 Pump (P5)
Boiler 4 Pump (P6)
Indirect DHW Pump (P7)
115 V (ac) Power Supply
Mod
Stage 1
T
T
+
-
C.A. Proof
Call
Heat
Call
Setpoint
Call
5V dc Out
V dc (+) In
Gnd (-)
EMS (+)
Out
Boil Sup
Boil Ret
DHW
Com
Com (-)
3
4
Primary
Pump P1
Primary
Pump P2
47
48
49
50
5
6
Bus b
tN4
C0
32
33
Auxiliary
43
44
Modbus
A
B
40
41
9
10
13
14
15
16
17
18
19
20
21
22
Vent
Boil In
Com
Boil 1 Out
Boil 2 Out
Boil 3 Out
Boil 4 Out
Com
23
24
25
26
27
Gnd
42
28
29
30
RJ45
Boiler 1
Pump
Boiler 2
Pump
75
76
77
78
Boiler 3
Pump
Boiler 4
Pump
Power
In
79
80
81
82
IDHW
Pump
85
86
53
54
Stage 1
Stage 2
Boiler 1
51
52
55
56
N
83
84
59
60
Stage 1
Stage 2
Boiler 2
57
58
61
62
65
66
Stage 1
Stage 2
Boiler 3
63
64
67
68
71
72
Stage 1
Stage 2
Boiler 4
69
70
73
74
L
Com
31
Modulating
Boiler
Modulating
Boiler
One Stage
On/Off Boiler
One Stage
On/Off Boiler
Primary Pump 1 (P1)
Primary Pump 2 (P2)
Optional BACnet
®
IP Connection
Mod
Stage 1
T
T
+
-
Stage 1
T
T
Stage 1
T
T
Boiler Supply Sensor (S2)
Boiler Return Sensor (S3)
DHW Sensor (S4)
Boiler 1 Outlet Sensor (S6)
Boiler 2 Outlet Sensor (S7)
Boiler 3 Outlet Sensor (S8)
Boiler 4 Outlet Sensor (S9)
Boiler Inlet Sensor (S5)
Outdoor
Sensor (S1)
Flow
Sensor (F1)
C.A. Proof
Setpoint
Demand
Permanent
Demand
Mod
+
-
Mod
+
-
Mod
+
-
Mod
+
-
Boiler
L
N
R
C