Applications & Modes - Raypak XTherm Series Installation & Operating Instructions Manual

Model 2505 (30F Sys Delta T)
Sys Ret
Temp Pipe max eq ft
Supply Sys Flow
(F)
Temp (F) GPM
3"
60 144 57 230
80 144 74 230
100 144 108 230
120 150 158 230
140 170 158 230
160 190 158 230
∆P MAX 158GPM @ 12.5 ft.hd.
HIGH FIRE CONDITIONS
Chart above represents performance capacity for injection pump as provided with the unit. Pipe size determined by velocity not to exceed
7.5 ft per sec.
Fig. 16.
Fig. 16: Air-Separation/Expansion Tank
Three-Way Valves
Three-way valves intended to regulate system water
temperatures by reducing flow in the boiler should not
be used. Raypak heaters are high-recovery, low-mass
heaters which are not subject to thermal shock.
Applications & Modes
The VERSA IC Control system is designed for a wide
range of applications. The installer/design engineer
should refer to the following Modes to determine which
best fits the intended application and functionality for
the unit being installed.
Type H models of XTherm have three modes available
to them to address the various applications the units
can be applied to. Type WH units will only have the
WH configuration available to them for use with pota-
ble water applications when directly connected to a
hot water storage tank. Type P units will only have the
pool configuration.
For detailed information on the VERSA IC control sys-
Model 3005 (30F Sys Delta T)
Pipe max eq ft
Supply Sys Flow
Temp (F) GPM
4" 3"
450 146 66
450 146 86
450 146 124
450 150 190
450 170 190
450 190 190
190GPM @ 2.3 ft.hd.
Table F: Boiler Rates of Flow for Various System Pipe Sizes
Model 3505 (32F Sys Delta T)
Pipe max eq ft
Supply Sys Flow
Temp (F) GPM
4" 3"
110 148 76
110 148 98
110 148 139
110 152 208
110 172 208
110 192 208
208GPM @ 2.5 ft.hd.
tem, see Catalog 5000.72. This manual can be found
in the document library at www.raypak.com.
Min System Flow = 120% of Max Boiler Flow
Mode 1 (Type H Units Only)
Fig. 17: MODE 1 - Single Boiler with
Primary/Secondary Piping
This mode selection is for hydronic heating systems
with single or multiple boilers (Maximum 4 boilers) in
primary/secondary piping configuration with or without
Outdoor Air Reset (S4).
is controlled by the System sensor (S3). The Boiler/
Injection Pump (P1) runs during any call for heat.
The System Pump (P2) runs whenever the system is
enabled for heating and the outdoor air temperature is
lower than the warm weather shut down (WWSD) tem-
perature setting (if utilized). The Boiler/Injection Pump
(P1) is delayed "off" as user defined in the BOILER
menu and the System Pump (P2) is delayed "off" in
the ADJUST menu.
17
Model 4005 (33F Sys Delta T)
Pipe Max eq ft
Supply Sys Flow
Temp (F) GPM
4" 3"
100 144 90
100 144 119
100 144 173
100 153 230
100 173 230
100 193 230
230GPM @ 2.95 ft.hd.
The system temperature
4"
100
100
100
100
100
100