Smooth Set Back Recovery (Ssr) & Ssr Stg 2 Lock Out Operation - Lennox ComfortSense 7500 Installation And Setup Manual

Table 1. Smooth Set back Recovery (SSR) & SSR Stg 2 Lock Out Operation
Equipment Available
1 stage HP with 1 or 2
stages electric backup
2 stage HP with 1 or 2
stages electric backup
1 stage HP with 1 stage
gas/oil backup
1 stage HP with 2 stages
gas/oil backup or modula­
tion furnace
SSR = Enabled;
SSR Stg 2 lock out = enabled
Run HP (Y1) only; all backup
heat (W1/W2) enabled 20 -
120 min before wake up set­
point
Run HP (Y1/Y2) only; all
backup heat (W1/W2) en­
abled 20 - 120 min before
wake up setpoint
Run HP (Y1) only; all backup
heat (W1) enabled 20 - 120
min before wake up setpoint
Run HP (Y1) only; all backup
heat (W1/W2) enabled 20 -
120 min before wake up set­
point
SSR = Enabled;
SSR Stg 2 lock-out = disabled (off)
Run HP (Y1) and have available backup
heat (W1/W2) as needed.
Run HP (Y1/Y2) and have available
backup heat (W1/W2) as needed.
Run HP (Y1) until a 2nd stage demand is
needed (by time/temp. differential); then
HP operation must stop and changeover
and lock in to W1 heat until setpoint
reached.
Run HP (Y1) until a 2nd stage demand is
needed (by time/temp differential); then
HP operation must stop and changeover
to W1/W2 heat as needed; lock in
W1/W2 heat until setpoint reached.
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