Crestron electronic 1.5 Manual De Usuario

        

Installation & Operation Manual

ELECTRICAL SHOCK HAZARD – For 
your safety, turn off electrical power supply 
before making any electrical connections 
to avoid possible electric shock hazard. 

 

Failure to do so can cause severe personal 
injury or death.

Wiring must be N.E.C. Class 1.  

If original wiring as supplied with boiler 
must be replaced, use only type 105°C 
wire or equivalent.

Boiler must be electrically grounded as 
required by National Electrical Code 
ANSI/NFPA 70 – latest edition.

1.  National Electrical Code and any other national, state, 

provincial, or local codes, or regulations.

2.  In Canada, CSA C22.1 Canadian Electrical Code Part 1, and 

any local codes.

1.  Connect 120 VAC power wiring to the line voltage terminal 

strip in the junction box, as shown in FIG. 7-1.

2.  Provide and install a fused disconnect or service switch    

sized per the boiler amp draw (shown on the boiler rating 
plate) as required by the code (see FIG. 7-1).

3.  When connecting the boiler, system and hot water generator 

pumps connect the wiring to the line voltage terminal strip 
as shown in FIG. 7-1.   Maximum current is 1.5 amps. 
Install a field supplied contactor between the pump(s) and 
the boiler connections. 

4.  For alternate voltages, consult factory.

Label all wires prior to disconnection when 
servicing controls.  Wiring errors can 
cause improper and dangerous operation.

 WARNING

 CAUTION

12
0V

SU
PPLY

SY
STEM

 PU

M

P

BOI

L

ER

 PU

M

P

HWG P

U

MP

M

AX.

 1

.5 AMPS P

ER 

CO

NNECT
IO

N

NL

F

IEL
D

 SU

PPL

IED
 C
O

N

TA
C

TOR

 MUS

T

BE I

N

ST
A

L

LE
D

GROUND   G

NEUTRAL   W

LINE   BK

SYSTEM PUMP

DRY CONTACT

BOILER PUMP

DRY CONTACT

HWG PUMP

DRY CONTACT

SERVICE SWITCH

CONTACTOR

(FIELD SUPPLIED)