Ultra Boiler Manual

Part number 550-100-440/0122
15
  
BASIC INSTALLATION
U3020
27
13
13
7
8
20
Additional
Zones
9
Do not exceed
12 inches apart
21
13
5
10
10
12
ZONE 2
ZONE 1
23
24
24
25
27
U3021
10
14
14
10
8
9
5
10
20
Additional
Zones
10
Do not exceed
12 inches apart
21
14
10
ZONE 2
ZONE 1
12
23
2424
Legend for Figure9 and Figure10
5 DHW circulator (see page56 for sug-
gested sizing)
7 System circulator (provided by installer)
8 Diaphragm type expansion tank ONLY
— DO NOT use a closed-type tank with
AQUA PLUS water heaters, because the
automatic air vent will deplete the air
from the system, causing the expansion
tank to waterlog.
9 Air separator with automatic air vent
10 Flow/check valves
12 Boiler circulator — provided with boiler
13 Zone valves, typical
20 Make-up water supply
21 Primary/secondary connection
23 DHW connections — see water heater
manual for piping
24 Strap system supply and return sensors
to lines as shown, at least 6 pipe diam-
eters (but no more than 3 feet) from
boiler connection tees.
25 Systems using high-head pumps may
require a bypass pressure regulator to
prevent damage to control valves.
27
DHW relief valve must be installed in the
tapping on top of the AQUA PLUS water
heater.
Items supplied with boiler
Items supplied by others
Zone valve zoning
System/zone pipe sizing
(Baseboard, convector or cast iron
radiators ONLY)
For residential space heating appli-
cations (other than radiant heating
or unit heaters) ONLY, you can use:
Ultra Model System header
-80
-105, -155
-230
-299, 399
1” or larger
1¼” or larger
1½” or larger
2” or larger
Recommendations are based on a 20°F temp
drop through the system.
Zone piping selection for series loops
with nned-tube baseboard — general
Copper pipe and
baseboard size
Max recommended
feet of baseboard
¾"
1"
106
179
Contact your supplier to size the system and zone
circulators needed. See below for zone piping
using Taco 007 or equivalent circulators.
Limits for series loop zones with
nned-tube baseboard using
Taco 007 (or equivalent) circulators
Copper
pipe and
baseboard
Max
load
MBH
Max feet of
baseboard
Max total
length of
circuit (feet)
¾"
1"
50
79
82
104
93
123
Circulator zoning
Figure 9 Ultra boiler with Ultra PLUS or AQUA PLUS-40, -60 or -80 water heater, zone valve zoning, typical piping
12
20
23
27
10
10
7
5
9
8
Boiler loop pipe size
Ultra-80, -105
Ultra-155, -230
Ultra-299, 399
1” or larger
1¼” or larger
1½ or larger
DHW loop pipe size
See Figure7,page14
Figure 10 Ultra boiler with AQUA PLUS water heater, typical piping schematics
 (cont.)
See AQUA PLUS - Product Manual for typical water piping.