User Guide

© 2016 tekmar 304P
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Application 304P–2
Electrical -----------------------------------------------------------------------------------------------
DIP Switches
Master
T-stat 1 Priority On
Exercising On
Post Purge On
Mod Boiler - depends on boiler
Away C R Rh W Away C R Rh W R W
70
FUSE 2
FUSE 7
FUSE 8
FUSE 3 FUSE 4 FUSE 5
FUSE 6
70 80
9060
50 100
MOD MAX %
MASTER MEMBER
OFF
OFF
OFF
4-20 mA
T-STAT 1 PRIORITY : 0N
EXERCISING : ON
POST PURGE : ON
MOD BOILER : 0-10V
RESERVED
FUSE 1
120 VAC
POWER
MOD
X X
tN4
POWER ROOM
RESPONSE
T1 T2 T3 T4 T5 T6
A
DHW C R W
BOILER T-STAT 1 T-STAT 2 T-STAT 3
PRIORITY
PUMP 1
PUMP 2 PUMP 3 PUMP 4 PUMP 5 PUMP 6
L
-
+
N L N L N L N L N L N L N
tN4
A
C R W
tN4
A
C R W
T-STAT 4
tN4
A
C R W
T-STAT 5
tN4
A
C R W
T-STAT 6 EXPANSION
tN4
A
C R W
tN4
A
B C D E
+T-T
DHW
-
B1
A1
T1
P1
L N
P2 P3 P4
T2 T3
A1 = DHW Tank Aquastat
B1 = Modulating Condensing Boiler
BP = Boiler Pump
P1 = Zone 1 DHW Tank Pump
P2 to P4 = Zone 2 through 4 Pump
T1 = WiFi Thermostat 561 or 562
T2 = Thermostat 518 or 519
T3 = Generic Bi-Metallic Strip Thermostat
Mechanical ---------------------------------------------------------------------------------------------
B1
P1
P2
P3
P4
A1
BP
304P
The Switching Relay 304P operates four heating zone circulators when the corresponding thermostat calls for heat. Zone 1
heats a domestic hot water tank. When priority is selected, zones 2 through 4 shut off when zone 1 is heating. The boiler is
fired when there is a call for heat.
Legend