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Shape.hlp!#9000 Copyright © 1997 Visio Corporation. All rights reserved.
DHW Valve
Advanced
DHW Priority
DHW during UnOcc
Installer
DHW Pump
Do not apply power
Copyright © tekmar Control Systems Ltd. 2000
5A
1
2
3
6
7
8
9
10
11
12
13
14
15
16
17
18
4
5
270
Dem
Com
DHW
Prim
L
P1
Power
Pmp/Vlv
N
Boiler
Pmp P2
Mod V(dc)
UnO
-
+
Sw
Boil
Out
Indr
279
Alert 1
High
Alert 2
Low
Sen
S2
S1
Cdn
Condensate Return Sensor
User
Indoor S1
Indoor S2
Average
DHW Tankless Coil Sensor
Setback
19
20
21
22
23
24
25
274
tN4
Bret/
Sup
Relay
C.A. /
Alert
/ P2
/Setp
Pr.
Demand
Exercise
EMS
274 Dip
Demands
Rotate
First On / First Off
First On / Last Off
Fixed Lead
Pump Sequencer
Fixed Last
26
275
27
28
29
30
31
Mod1
Mod2
Mod3
Mod4
275 Dip
BTC I
256
T
R
C
IDHW
Dry switch or 24V(ac)
Setpoint
dc
20V
In
(+)
mA
PressureSensor
(-)
Gnd
5V
Vdc
Flow Sensor
Sys
Vent
Inlet
Outlt
284
Temperature Sensors - Do not apply power
47
48
49
50
Primary
Pump
P2
51
52
Mod
53
54
Stage
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
32
33
Bus b
C0
34
35
Bus 1
C1
36
37
Bus 2
C2
38
39
Bus 3
C3
40
41
ModBus
A
B
43
44
Auxiliary
45
46
42
75
76
77
78
79
80
81
82
83
84
85
86
Boiler 1
Boiler 2
Boiler 3
Boiler 4
Power In
Relays: 230Vac 5A 1/3 HP (max)
230Vac 5A
1/6 HP (max)
115Vac
230Vac 10A
½ HP (max)
Boiler Relays: 24Vac 5A (max)
tekmarNet Communication
RJ45
BACnet
Heat
Call
Ret
Flow
Proof
Cmb. Air
door
257
On
Heat 1
10A
Heat 2
No power
260
261
Pmp
262
tN1/
tN2
10K
Setp
284 DIP
Ext. Flow Proof / Off
Ext. C.A. Proof / Off
Off / Exercise
Setback / Off
/
Adv
Stand Alone
External Input
C.A.
Alarm
Mod1 mA
Mod2 mA
Mod3 mA
C.A./
Boiler 3/
Pump 1
Pump 2
Pump 3
Setp/
265
Sequential
Soft Stop
Parallel
268
Relay 9/
263
2 / P2
None
DHW Sensor
Expansion
294
Ethernet
System
Out Sens
+ EMS -
Sensor
Pressure
Ref
A-
B+
Bus
Modbus
Air Relay
Comb
Modulation
Enable
Pumps or Valves
24 V MAX!
294 EXP DIPs
294EXP
Boiler 6
Boiler 7
Boiler 8
Boiler 5