Nortek P7TQ- 072 Série Notice D'installation page 57

Appareils monoblocs de chauffage / climatisation électrique de toit
Table des Matières

Publicité

Figure 28. Schéma de câblage pour modèles 150 (460V)
REFER TO DRAWING # 1011991 FOR STANDARD PLUG & ECONOMIZER PLUG CONNECTION
NOTES
1. DISCONNECT ALL POWER BEFORE SERVICING.
2. CAUTION: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE
MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING
A TEMPERATURE RATING OF AT LEAST 105 DEGREES C.,
3. LINE AND BLOWER MOTOR BRANCH CIRCUIT WIRE SHOULD BE OF A SIZE
TO PREVENT VOLTAGE DROP BEYOND FIVE PERCENT OF SUPPLY LINE VOLTAGE.
4. SEE RATING PLATE LABEL FOR MCA, TO DETERMINE LINE FEED COPPER WIRE SIZE.
LINE FEEDS CONNECT TO THE LOCKABLE DISCONNECT OR DISTRIBUTION BLOCKS.
5. USE #18 GA. WIRE FOR 24 VOLT CONTROL WIRING ON UNIT.
6. WHEN PROVIDING OR REPLACING FUSES IN THE FUSIBLE DISCONNECT SWITCH
USE DUAL ELEMENTS TIME DELAY FUSES AND SIZE ACCORDING TO 1.25
TIMES THE MAXIMUM TOTAL INPUT AMPS.
7. ALL MOTORS MARKED IOL HAVE INTERNAL LINE BREAK.
8. FUSIBLE DISCONNECT IS FIELD FURNISHED OR AVAILABLE FROM FACTORY AS AN OPTION.
9. THE LINE SIDE OF THE DISCONNECT SWITCH MUST BE CONNECTED TO THE INCOMING
POWER SUPPLY SUCH THAT THE VOLTAGE BETWEEN L1 AND GROUND IS THE GREATER VALUE.
10. ALL 24 VAC LOW VOLTAGE CONNECTIONS TO UNIT MUST BE CLASS 2.
WIRING CODE
BLACK - BK
BROWN - BR
TOTAL WIRE
RED - RD
ORANGE - OR
YELLOW - YE
GREEN - GN
BLUE - BL
VIOLET - VI
WHITE - WH
FACTORY WIRING
GRAY - GY
FIELD WIRING
TERMINAL BLOCK -- UNIT PANEL
(HIGH VOLTAGE SECTION)
TERMINAL BLOCK -- UNIT PANEL
(LOW VOLTAGE SECTION)
SHT. #1
P7TQ-150: AK7
FIELD CONTROL WIRING
MINIMUM RECOMMENDED
LENGTH
WIRE SIZE
150 FEET
#18 GA.
250 FEET
#16 GA.
350 FEET
#14 GA.
L1
L1
L2
L3
L3
3
5
7
7
8
8
10
16
20
21
22
36
37
38
39
40
41
46
48
50
51
52
53
54
72
10208010
(NEW)
07/18
57

Publicité

Table des Matières
loading

Ce manuel est également adapté pour:

P7tq- 090 sérieP7tq-120 sérieP7tq- 150 série

Table des Matières