Page 15
GV100W BOILER
INSTALLATION & OPERATING INSTRUCTIONS
FIG. NO. 15 Multi-Zone Diagram
T87F ZONE 1 |
| T87F ZONE 2 |
| T87F ZONE 3 |
| |||
| V8043F |
|
| V8043F |
|
| V8043F |
|
END SWITCH | END SWITCH | END SWITCH | ||||||
TH | TR | TH | TR | TH | TR | |||
FIG. NO. 16 Multi-Zone Diagram
| LINE VOLTAGE | TO ADDITIONAL | |
| LOW VOLTAGE | R845A RELAYS | |
R8285D | FOR OTHER ZONES | ||
|
|
| ADD | ADD |
|
| JUMPER | JUMPER |
|
| AS | AS |
|
| SHOWN | SHOWN |
| R8285D |
|
|
| 1 |
| LINE VOLTAGE |
|
|
| |
|
|
| LOW VOLTAGE |
| 3 |
|
|
| G | W | 2 |
Y |
| ||
| C | R | (HOT) |
|
|
1
3
Y G W
C R
R845A RELAY
ZONE 1
6 |
5 |
4 |
3 |
1 |
2 |
|
|
| L1 | 1 | L2 |
|
|
| POWER | ||
W | BK |
| SUPPLY | ||
L1 | CIRCULATOR |
|
| ||
|
|
|
| ||
|
|
|
|
| |
POWER
1 SUPPLY
L2
1PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2R8285A POWERS (3) V8043 ZONE VALVES, OR ONLY (2) V8043'S IF AMBIENT TEMPERATURE EXCEEDS 77F. USE AND ADDITIONAL TRANSFORMER FOR EVERY ADDITIONAL 3 OR LESS VALVES.
W BK
LOW
CIRCULATOR VOLTAGE
ZONE 1 THERMOSTAT
L 1 L | 1 | PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION |
2POWER 1 | AS REQUIRED. |
SUPPLY
FIG. NO. 17 Multi-Zone Diagram
LINE VOLTAGE
LOW VOLTAGE
R8285D
1
3
Y G W
C R 
ZONE 1 | ZONE 2 | ZONE 3 |
THERMOSTAT | THERMOSTAT | THERMOSTAT |
R8230B | R8230B | R8230B |
W BK
L2 1 L1
POWER
SUPPLY
CIRCULATOR | CIRCULATOR | CIRCULATOR |
ZONE 1 | ZONE 2 | ZONE 3 |
1PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2AS MANY AS FOUR R8230B RELAYS MAY BE POWERED BY THE R8285A ADDITIONAL GROUPS OF 4 REQUIRE AN ADDITIONAL TRANSFORMER.
