Tekmar Universal Reset Module 422 Wiring Brochure

© 2009 W 422 - 03/09 4 of 12
Description: Variable Speed Injection Mixing, DHW, Setpoint, Single On / Off Boiler, External tN4 = Boiler Temperature.
External
tN4 Control
Boiler Temp.
CtN4
Mix
Sensor
082
Boiler
Sensor
082
Outdoor
Sensor
070
DHW
Call
Setpoint
Call
On / Off
Boiler
To ground
Pump Pump
Pump Pump
Refer to Job Record for Maximum Allowable Loads
51
52 53 54 55 56 57 58 59 60 61 62 63 64 65
Boiler DHW Setpoint C C2 tN4 C Com Boil Mix Com Out+Opn Cls
Demand Demand 24 V (ac) Boil/Mix2 R R Mod (dc)
R
66 67 68 69 70
–
Primary Mix Sys P1
10 A
max.
75 76 77 78
NN
DHW Variable Speed
71 72 73 74
Pump Pump
N
Pump NPump
tN4
H7008B
tN4 Boiler / Mix 2
Boil Sens Sup / Ret
Boiler On-Off / Mod
Off / tekmar Stager
Off / Flushing
Powered OutputOutput 1 VA
Floating Output:
24 V (ac) 8 VA
Made in Canada
Meets Class B: Canadian
ICES & FCC Part 15
Test
Var. Pump Fuse
T2.5 A 250 V
Universal Reset Module 422
Item
Menu
tektra 991-03
Var. Pump: 115 V (ac) 2.5 A
Demands: 20 - 260 V (ac)
Relay Rating: 115 V (ac) 5 A
/
Do not apply power
2.5 A
Connections
from Zone
Manager
24 V (ac) R & C
tN4 = Mix 1 temp.
115 V (ac) L & N
See
D
422
Electrical Application 422 E1

Tekmar Universal Reset Module 422 Specifications

General

Brand	Tekmar
Model	Universal Reset Module 422
Category	Control Unit
Language	English